File:Webcomic xkcd - Wikipedian protester.png|right|thumb|alt=xkcd comic "Wikipedian Protestor": as a politician addresses a crowd, a protestor within the crowd holds up a sign reading "[CITATION NEEDED]".|A 2007
xkcd comic by
Randall Munroe featuring a protester with a "[on needed]" placard In 2008, Matt Mechtley created stickers with "[on needed]", encouraging people to stick them on
advertisements. In 2010, American television hosts
Jon Stewart and
Stephen Colbert led the
Rally to Restore Sanity and/or Fear at the
National Mall in
Washington, D.C., where some participants held placards with "[on needed]".
Randall Munroe has frequently used "[on needed]" tags for humorous commentary in his writings, including in his 2014 book
What If?. The podcast "Citations Needed" is a
Webby-nominated media criticism podcast, hosted by journalists Nima Shirazi and Adam Johnson to explore the intersection of media, PR, and power. Wikipedian
Molly White publishes a newsletter covering the cryptocurrency and technology industries called
Citation Needed. ==References==