Last night's tragic shooting in Colorado resulted in 12 deaths and 71 wounded victims, making it the largest peacetime mass shooting in American history. The Internet reacted in full force with the hashtag #theatershooting on Twitter and survivors' exchanging witness accounts on Reddit.

Anonymous is back in the zeitgeist after leaking more than 1,000 e-mails and passwords that once belonged to some of the largest oil companies in the world as part of its Operation Save The Arctic.

Comedian Daniel Tosh's controversial sexual assault joke caused a stir online this week, sparking a debate about the ethics of humor.

Since its inception in 1954, Scientology has been a popular subject of many legal disputes and media scrutiny for its covert ops, mythical rituals and its strong affiliation with Hollywood celebrities like Tom Cruise.

Enrique Peña Nieto's victory in Mexico's presidential election yesterday has led to an uproar on Twitter from the members of #YoSoy132 movement, spreading accusations of election fraud through the hashtag #fraude2012.