The concept of citizen journalism (also known as "public", "participatory", "democratic", "guerrilla" or "street" journalism)
 is based upon public citizens "playing an active role in the process of
 collecting, reporting, analyzing, and disseminating news and 
information." Similarly, Courtney C. Radsch
 defines citizen journalism "as an alternative and activist form of news
 gathering and reporting that functions outside mainstream media 
institutions, often as a response to shortcomings in the professional 
journalistic field, that uses similar journalistic practices but is 
driven by different objectives and ideals and relies on alternative 
sources of legitimacy than traditional or mainstream journalism". Jay Rosen
 proposes a simpler definition: "When the people formerly known as the 
audience employ the press tools they have in their possession to inform 
one another." Citizen journalism should not be confused with Community journalism or Civic journalism, both of which are practiced by professional journalists; Collaborative journalism which is the practice of professional and non-professional journalists working together; and Social journalism that denotes a digital publication with a hybrid of professional and non-professional journalism.
Citizen journalism is a specific form of both citizen media and user-generated content.
 By juxtaposing the term "citizen", with its attendant qualities of 
civic-mindedness and social responsibility, with that of "journalism", 
which refers to a particular profession, Courtney C. Radsch argues that this term best describes this particular form of online and digital
 journalism conducted by amateurs, because it underscores the link 
between the practice of journalism and its relation to the political and
 public sphere.
New media technology, such as social networking and media-sharing websites,
 in addition to the increasing prevalence of cellular telephones, have 
made citizen journalism more accessible to people worldwide. Recent 
advances in new media have started to have a profound political impact.
 Due to the availability of technology, citizens often can report 
breaking news more quickly than traditional media reporters. Notable 
examples of citizen journalism reporting from major world events are, 
the 2010 Haiti earthquake, the Arab Spring, the Occupy Wall Street movement, the 2013 protests in Turkey, the Euromaidan events in Ukraine, and Syrian Civil War and the 2014 Ferguson unrest.
Critics of the phenomenon, including professional journalists and news organizations, claim that citizen journalism is unregulated, too subjective, amateur, and haphazard in quality and coverage.
Theory
Citizen journalism, as a form of alternative media, presents a "radical challenge to the professionalized and institutionalized practices of the mainstream media".
According to Terry Flew, there have been three elements critical 
to the rise of citizen journalism: open publishing, collaborative 
editing, and distributed content. Mark Glaser said in 2006:
…people without professional journalism training can use the tools of modern technology and the global distribution of the Internet to create, augment or fact-check media on their own or in collaboration with others.
In What is Participatory Journalism? (2003), J. D. Lasica classifies media for citizen journalism into the following types:
- Audience participation (such as user comments attached to news stories, personal blogs, photographs or video footage captured from personal mobile cameras, or local news written by residents of a community)
 - Independent news and information Websites (Consumer Reports, the Drudge Report)
 - Full-fledged participatory news sites (one:convo, NowPublic, OhmyNews, DigitalJournal.com, GroundReport, 'Fair Observer')
 - Collaborative and contributory media sites (Slashdot, Kuro5hin, Newsvine)
 - Other kinds of "thin media" (mailing lists, email newsletters)
 - Personal broadcasting sites (video broadcast sites such as KenRadio)
 
The literature of citizen, alternative, and participatory journalism 
is most often situated in a democratic context and theorized as a 
response to corporate news media dominated by an economic logic. Some 
scholars have sought to extend the study of citizen journalism beyond 
the developed Western world, including Sylvia Moretzsohn, Courtney C. Radsch, and Clemencia Rodríguez.
 Radsch, for example, wrote that "Throughout the Arab world, citizen 
journalists have emerged as the vanguard of new social movements 
dedicated to promoting human rights and democratic values."
Theories of Citizenship
According to Vincent Campbell, theories of citizenship can be categorized into two core groups: those that consider journalism for citizenship, and those that consider journalism as citizenship. 
The classical model of citizenship is the base of the two 
theories of citizenship. The classical model is rooted in the ideology 
of informed citizens and places emphasis on the role of journalists 
rather than on citizens. 
The classical model has four main characteristics:
- journalists' role of informing citizens
 - citizens are assumed to be informed if they regularly attend to the news they are supplied with
 - more informed citizens are more likely to participate
 - the more informed citizens participate, the more democratic a state is more likely to be.
 
The first characteristic upholds the theory that journalism is for
 citizens. One of the main issues with this is that there is a normative
 judgement surrounding the amount and nature of information that 
citizens should have as well as what the relationship between the two 
should be. One branch of journalism for citizens is the "monitorial citizen" (coined by Michael Schudson).
 The "monitorial citizen" suggests that citizens appropriately and 
strategically select what news and information they consume. The 
"monitorial citizen" along with other forms of this ideology conceive 
individuals as those who do things with information to enact change and 
citizenship. However, this production of information does not equal to 
an act of citizenship, but instead an act of journalism. Therefore, 
citizens and journalists are portrayed as distinctive roles whereas 
journalism is used by citizens for citizenship and conversely, journalists serve citizens.
The second theory considers journalism as citizenship. 
This theory focuses on the different aspects of citizen identity and 
activity and understands citizen journalism as directly constituting 
citizenship. The term "liquid citizenship" (coined by Zizi Papacharissi)
 depicts how the lifestyles that individuals engage in allow them to 
interact with other individuals and organizations, which thus remaps the
 conceptual periphery of civic, political, and social. This "liquid 
citizenship" allows the interactions and experiences that individuals 
face to become citizen journalism where they create their own forms of 
journalism. An alternative approach of journalism as citizenship rests 
between the distinction between "dutiful" citizens and "actualizing" 
citizens. "Dutiful" citizens engage in traditional citizenship 
practices, while "actualizing" citizens engage in non-traditional 
citizenship practices. This alternative approach suggests that 
"actualizing" citizens are less likely to use traditional media and more
 likely to use online and social media
 as sources of information, discussion, and participation. Thus, 
journalism in the form of online and social media practices become a 
form of citizenship for actualizing citizens.
Criticisms have been made against citizen journalism, especially 
from among professionals in the field. Citizen journalists are often 
portrayed as unreliable, biased and untrained – as opposed to 
professionals who have "recognition, paid work, unionized labour and 
behaviour that is often politically neutral and unaffiliated, at least 
in the claim if not in the actuality".
History
The 
idea that every citizen can engage in acts of journalism has a long 
history in the United States. The contemporary citizen journalist 
movement emerged after journalists began to question the predictability 
of their coverage of events such as the 1988 U.S. presidential election.
 Those journalists became part of the public, or civic, journalism 
movement, which sought to counter the erosion of trust in the news media
 and the widespread disillusionment with politics and civic affairs.
Initially, discussions of public journalism focused on promoting 
journalism that was "for the people" by changing the way professional 
reporters did their work. According to Leonard Witt, however, early 
public journalism efforts were "often part of 'special projects' that 
were expensive, time-consuming, and episodic. Too often these projects 
dealt with an issue and moved on. Professional journalists
 were driving the discussion. They would have the goal of doing a story 
on welfare-to-work (or the environment, or traffic problems, or the 
economy), and then they would recruit a cross-section of citizens and 
chronicle their points of view. Since not all reporters and editors 
bought into this form of public journalism, and some outright opposed 
it, reaching out to the people from the newsroom was never an easy 
task." By 2003, in fact, the movement seemed to be petering out, with 
the Pew Center for Civic Journalism closing its doors.
Traditionally, the term "citizen journalism" has had a history of
 struggle with deliberating on a concise and mutually agreed upon 
definition. Even today, the term lacks a clear form of 
conceptualization. Although the term lacks conceptualization, 
alternative names of the term are unable to comprehensively capture the 
phenomenon. For example, one of  the interchangeable names with "citizen
 journalism" is "user-generated content"
 (UGC). However, the issue with this alternative term is that it 
eliminates the potential civic virtues of citizen journalism and 
considers it to be stunted and proprietorial.
With today's technology the citizen journalist movement has found
 new life as the average person can capture news and distribute it 
globally. As Yochai Benkler
 has noted, "the capacity to make meaning – to encode and decode humanly
 meaningful statements – and the capacity to communicate one's meaning 
around the world, are held by, or readily available to, at least many 
hundreds of millions of users around the globe." Professor Mary-Rose Papandrea, a constitutional law professor at Boston College, notes in her article, Citizen Journalism and the Reporter's Privilege, that:
[i]n many ways, the definition of "journalist" has now come full circle. When the First Amendment of the U.S. Constitution was adopted, "freedom of the press" referred quite literally to the freedom to publish using a printing press, rather than the freedom of organized entities engaged in the publishing business. … It was not until the late nineteenth century that the concept of the "press" metamorphized into a description of individuals and companies engaged in an often-competitive commercial media enterprise.
A recent trend in citizen journalism has been the emergence of what blogger Jeff Jarvis terms hyperlocal journalism,
 as online news sites invite contributions from local residents of their
 subscription areas, who often report on topics that conventional 
newspapers tend to ignore.
 "We are the traditional journalism model turned upside down," explains 
Mary Lou Fulton, the publisher of the Northwest Voice in Bakersfield, California.
 "Instead of being the gatekeeper, telling people that what's important 
to them 'isn't news', we're just opening up the gates and letting people
 come on in. We are a better community newspaper for having thousands of
 readers who serve as the eyes and ears for the Voice, rather than 
having everything filtered through the views of a small group of 
reporters and editors."
Citizen journalists
According to Jay Rosen, citizen journalists are "the people formerly known as the audience," who "were
 on the receiving end of a media system that ran one way, in a 
broadcasting pattern, with high entry fees and a few firms competing to 
speak very loudly while the rest of the population listened in isolation
 from one another— and who today are not in a situation like that at all. ... The people formerly known as the audience are simply the public made realer, less fictional, more able, less predictable."
Abraham Zapruder, who filmed the assassination of President John Fitzgerald Kennedy with a home-movie camera, is sometimes presented as an ancestor to citizen journalists. Egyptian citizen Wael Abbas
 was awarded several international reporting prizes for his blog Misr 
Digital (Digital Egypt) and a video he publicized of two policemen 
beating a bus driver helped lead to their conviction.
During 9/11 many eyewitness accounts of the terrorist attacks on 
the World Trade Center came from citizen journalists. Images and stories
 from citizen journalists close to the World Trade Center offered 
content that played a major role in the story.
In 2004, when the 9.1-magnitude underwater earthquake caused a huge tsunami in Banda Aceh Indonesia and across the Indian Ocean, a weblog-based virtual network of previously unrelated bloggers emerged that covered the news in real-time, and became a vital source for the traditional media for the first week after the tsunami.
A large amount of news footage from many people who experienced the tsunami was widely broadcast,(subscription required)
as well as a good deal of "on the scene" citizen reporting and blogger 
analysis that was subsequently picked up by the major media outlets 
worldwide.
Subsequent to the citizen journalism coverage of the disaster and 
aftermath, researchers have suggested that citizen journalists may, in 
fact, play a critical role in the disaster warning system itself, 
potentially with higher reliability than the networks of tsunami warning
 equipment based on technology alone which then require interpretation 
by disinterested third parties.
The microblog Twitter played an important role during the 2009 Iranian election protests,
 after foreign journalists had effectively been "barred from reporting".
 Twitter delayed scheduled maintenance during the protests that would 
have shut down coverage in Iran due to the role it played in public 
communication.
Social media platforms such as blogs, YouTube, and Twitter
 encourage and facilitate engagement with other citizens who participate
 in creating content through commenting, liking, linking, and sharing. 
The majority of the content produced by these amateur news bloggers was 
not original content, but curated information monitored and edited by 
these various bloggers. There has been a decline in the amateur news 
blogger due to social media platforms that are much easier to run and 
maintain, allowing individuals to easily share and create and content.
Wikimedia Foundation hosts a participatory journalism web site, Wikinews.
 The website allows contributors to write news which undergo a peer 
review prior to publications in some language editions (English, German,
 Russian) but not in others (Norwegian).
Criticisms
Objectivity
Citizen
 journalists also may be activists within the communities they write 
about. This has drawn some criticism from traditional media institutions
 such as The New York Times, which have accused proponents of public journalism of abandoning the traditional goal of objectivity.
 Many traditional journalists view citizen journalism with some 
skepticism, believing that only trained journalists can understand the 
exactitude and ethics involved in reporting news. See, e.g., Nicholas Lemann, Vincent Maher, and Tom Grubisich. 
An academic paper by Vincent Maher, the head of the New Media Lab
 at Rhodes University, outlined several weaknesses in the claims made by
 citizen journalists, in terms of the "three deadly E's", referring to 
ethics, economics, and epistemology.
An analysis by language and linguistics professor, Patricia 
Bou-Franch, found that some citizen journalists resorted to 
abuse-sustaining discourses naturalizing violence against women. She 
found that these discourses were then challenged by others who 
questioned the gendered ideologies of male violence against women.
Quality
An 
article in 2005 by Tom Grubisich reviewed ten new citizen journalism 
sites and found many of them lacking in quality and content. Grubisich followed up a year later with, "Potemkin Village Redux."
 He found that the best sites had improved editorially and were even 
nearing profitability, but only by not expensing editorial costs. Also 
according to the article, the sites with the weakest editorial content 
were able to expand aggressively because they had stronger financial 
resources. 
Another article published on Pressthink examined Backfence, a 
citizen journalism site with three initial locations in the D.C. area, 
which reveals that the site has only attracted limited citizen 
contributions.
 The author concludes that, "in fact, clicking through Backfence's pages
 feels like frontier land -– remote, often lonely, zoned for people but 
not home to any. The site recently launched for Arlington, Virginia. However, without more settlers, Backfence may wind up creating more ghost towns." 
David Simon, a former Baltimore Sun reporter and writer-producer of the popular television series, "The Wire,"
 criticized the concept of citizen journalism—claiming that unpaid 
bloggers who write as a hobby cannot replace trained, professional, 
seasoned journalists.
I am offended to think that anyone, anywhere believes American institutions as insulated, self-preserving and self-justifying as police departments, school systems, legislatures and chief executives can be held to gathered facts by amateurs pursuing the task without compensation, training or for that matter, sufficient standing to make public officials even care to whom it is they are lying to.
An editorial published by The Digital Journalist web magazine 
expressed a similar position, advocating to abolish the term "citizen 
journalist", and replacing it with "citizen news gatherer".
"Professional journalists cover fires, floods, crime, the legislature, and the White House every day. There is either a fire line or police line, or security, or the Secret Service who allow them to pass upon displaying credentials vetted by the departments or agencies concerned. A citizen journalist, an amateur, will always be on the outside of those lines. Imagine the White House throwing open its gates to admit everybody with a camera phone to a presidential event."
While the fact that citizen journalists can report in real time and 
are not subject to oversight opens them to criticism about the accuracy 
of their reporting, news stories presented by mainstream media also 
misreport facts occasionally that are reported correctly by citizen 
journalists. As low as 32% of the American population have a fair amount
 of trust in the media.
Effects on traditional journalism
Journalism
 has been affected significantly due to citizen journalism. This is 
because citizen journalism allows people to post as much content as they
 want, whenever they want. In order to stay competitive, traditional 
news sources are forcing their journalist to compete. This means that 
journalist now have to write, edit and add pictures into their content 
and they must do so at a rapid pace, as it is perceived by news 
companies that it's essential for journalist to produce content at the 
same rate that citizens can post content on the internet. This is hard 
though, as many news companies are facing budget cuts and cannot afford 
to pay journalists the proper amount for the amount of work they do.  
Despite the uncertainties of a job in journalism and rising tuition 
costs there has been a 35% increase in journalism majors throughout the 
past few years according to Astra Taylor in her book The People's Platform.
Legal repercussions
Edward Greenberg, a New York City litigator, notes higher vulnerability of unprofessional journalists in court compared to the professional ones:
"So-called shield laws, which protect reporters from revealing sources, vary from state to state. On occasion, the protection is dependent on whether the person [who] asserted the claim is in fact a journalist. There are many cases at both the state and federal levels where judges determine just who is/is not a journalist. Cases involving libel often hinge on whether the actor was or was not a member of the "press"."
The view stated above does not mean that professional journalists are fully protected by shield laws. In the 1972 Branzburg v. Hayes case the Supreme Court of the United States invalidated the use of the First Amendment as a defense for reporters summoned to testify before a grand jury. In 2005, the reporter's privilege of Judith Miller and Matthew Cooper was rejected by the appellate court.
Possible future
Citizen
 journalism increased during the last decade of the twentieth century 
and into the twenty-first century, associated with the creation of the internet
 which introduced new ways in communicating and engaging news. Due to 
this shift in technology, individuals were able to access more news than
 previously and at a much faster rate. This larger quantity also made it
 so there was a larger variety of sources which people were able to 
consume media and news.
Natalie Fenton discusses the role of citizen journalism within the digital age
 and has three characteristics associated with the topic: speed and 
space, multiplicity and poly-centrality, and interactivity and 
participation. 
With technological advancements, individuals were able to 
participate increasingly in journalism. Pictures or videos could be 
uploaded online in a matter of minutes and this paved the way for social media to grow as a strong producer in the industry. The introduction of technologies such as the smartphone
 increased the ability to access the internet. Many large corporations 
have shifted their focus toward online presence, such as Facebook or 
YouTube. New technologies such as virtual reality may open new avenues that media companies and individuals alike will be able to exploit for journalism.
Proponents and facilitators
Dan Gillmor, the former technology columnist for the San Jose Mercury News, founded a nonprofit, the Center for Citizen Media, (2005-2009) to help promote it. 
Professor Charles Nesson,
 William F. Weld Professor of Law at Harvard Law School and the founder 
of the Berkman Center for Internet & Society, chairs the Advisory 
Board for Jamaican citizen journalism startup On the Ground News Reports.
In March 2014, blogger and survivalist author James Wesley Rawles
 launched a web site that provides free press credentials for citizen 
journalists called the Constitution First Amendment Press Association 
(CFAPA). According to David Sheets of the Society for Professional Journalists, Rawles keeps no records on who gets these credentials.
Maurice Ali founded one of the first international citizen journalist associations, the International Association of Independent Journalists Inc.
 (IAIJ), in 2003. The association through its President (Maurice Ali) 
published studies and articles on citizen journalism, attended and 
spoken at UNESCO and United Nations events  as advocates of citizen journalism worldwide.