Chinese authorities, according to reports, have blocked access to foursquare, and the censorship move likely is tied to the 21st anniversary of the massacre at Tiananmen Square.
Although the Associated Press reports that there were no outward signs of protest at Tiananmen Square in Beijing today, apparently large numbers of foursquare users were checking in from the square as a means to signal their solidarity with the student-led protesters who were killed by government troops on the evening of June 3-4, 1989.
foursquare couldn't immediately be reached for comment.
From the rebellion in Iran to the terrorist attack in India, social media outlets such as Twitter have been used as a communications medium and sometimes a protest vehicle during fast-moving and calamitous events.
Apparently, in the case of Tiananmen Square, people have been using foursquare to register their displeasure with authoritarian policies in China.
Who knew checking-in might one day be viewed as a revolutionary act?