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, 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.
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.
The concept of citizen science has been extended to the ocean environment for characterizing ocean dynamics and tracking marine debris. For example, the mobile app Marine Debris Tracker is a joint partnership of National Oceanic and Atmospheric Administration and the University of Georgia. Long term sampling efforts such as the continuous plankton recorder has been fitted on ships of opportunity since 1931. Plankton collection by sailors and subsequent genetic analysis was pioneered in 2013 by Indigo V Expeditions as a way to better understand marine microbial structure and function.
The Department of Homeland Security coordinates the overall effort of helping communities establish local Citizen Corps Councils and programs. The memberships of these councils may include emergency managers and first responders; volunteer community service, and faith- and community-based organizations; schools, hospitals, private businesses, neighborhoods, and individual citizens. Citizen Corps Councils exist at the national, state, territorial, local, and tribal levels of government. Citizen Corps Councils build on the successful efforts that are in place in many communities around the country to prevent crime and respond to emergencies. Programs that started through local innovation are the foundation for Citizen Corps and this national approach to citizen participation in community safety. The responsibilities of the Citizen Corps Councils are as follows:
On September 16, 1983, twenty would-be "citizen diplomats" and a film crew of four left the United States and headed for Moscow. Note: Originally the organization was named the Center for U.S.-USSR Initiatives (CUUI). With the dissolution of the USSR in 1990, the organization took its present name. See CCI's history
The sport-focused weekly paper formerly known as the Super Saturday Citizen is published every Saturday. After the revamp under Dr. Garcia it was titled simply Saturday Citizen.
Since 2013, Citizen Lab has hosted the Summer Institute on Monitoring Internet Openness and Rights as an annual research workshop at the Munk School of Global Affairs, University of Toronto. It brings together researchers and practitioners from academia, civil society, and the private sector who are working on Internet openness, security, and rights. Collaborations formed at CLSI workshops have led to publication of high impact reports on Internet filtering in Zambia, a security audit of child monitoring apps in South Korea, and an analysis of the "Great Cannon", an attack tool in China used for large scale distributed-denial of service attacks against Github and GreatFire.org.
According to a report by AP News journalist Raphael Satter, Citizen Lab researchers who reported in October, that Israeli NSO Group surveillance software was used to spy on the "inner circle" of Jamal Khashoggi just before his murder, "are being targeted in turn by international undercover operatives." Citizen Lab October report revealed that NSO's "signature spy software" which had been placed on the iPhone of Saudi dissident Omar Abdulaziz, one of Khashoggi’s confidantes, months before. Abdulaziz said that Saudi Arabia spies used the hacking software to reveal Khashoggi's "private criticisms of the Saudi royal family". He said this "played a major role" in his death.
The Department of Homeland Security, the Department of Justice, and the Department of Health and Human Services jointly administer five programs through Citizen Corps: CERT, Fire Corps, Neighborhood Watch, MRC, and VIPS.
The 1992 Citizen Cup featured the emergence of the America 3 Foundation syndicate headed by American businessman Bill Koch.
In March 2019, The New York Times reported that Citizen Lab had been a target of UAE contractor DarkMatter.
In 2011 there was an influx of white supremacists to Montana's Flathead Valley region. Karl Gharst, a white supremacist active in the Flathead area, publicly announced plans to form a citizen grand jury in Kalispell to indict the Montana Human Rights Network, a local anti-racism organization. Gharst, previously active in the Aryan Nations and currently founder of a group called Kalispell Pioneer Little Europe, claimed that the MHRN was a "Jewish Defamation Organization" and part of a "Jewish terrorist network".
Citizen Science Association has a Ubiquity Press published, open-access, peer-reviewed journal called Citizen Science: Theory and Practice. Rather than focusing on reporting citizen science projects' scientific outcomes, but reporting research, review and synthesis, case studies, essays, methods, and meeting reports.
Some campaigners, led by Georgia activist Carl Swensson, have sought to, "finally expose the conspiracy behind President Obama's birth certificate," by forming what they term "citizen grand juries" to indict Obama. The "citizen grand juries" are based on the Fifth Amendment's premise that "no person shall be held to answer for a capital, or otherwise infamous crime, unless on presentment or indictment of a Grand Jury."
In 2013, a citizen grand jury formed by Larry Klayman "convicted" Obama of fraud.
Every year the Patriot seeks to recognize true community heroes who donate their time or money or other resources to improve the quality of life in Jackson County through its Citizen Patriot Citizen of the Year program.
Although the activists managed to hand out copies of "indictments" to Congressional staff, the courts have not regarded the "citizen grand juries" favorably. In June 2009, a group of 172 campaigners declared themselves to be a "Super American Grand Jury" and voted to charge Obama with treason and accused him of not being a U.S. citizen. Chief Judge Royce C. Lamberth of the United States District Court for the District of Columbia dismissed the "indictment" on July 2, 2009 and declared "[T]here is no authority under the Rules of Procedure or in the statutes of the United States for this court to accept [a presentment]... The individuals who have made this presentment were not convened by this court to sit as a grand jury nor have they been selected at random from a fair cross section of this district. Any self-styled indictment or presentment issued by such a group has no force under the Constitution or laws of the United States."
The earliest so-called 9/11 citizen grand jury, the 23-member "Los Angeles Citizens' Grand Jury on the Crimes of 9/11/01," was organized in 2004 by activist Lynne Pentz. By October of that year it had launched an "indictment" accusing George W. Bush and other administration officials of complicity and foreknowledge of the attacks. Among those offering testimony at the event were Webster Tarpley, Barbara Honegger, Don Paul, Jim Hoffman and Christopher Bollyn. Similar citizen grand juries were organized in San Diego later in the 2000s.