Check out the year's best online crowdfunding, viral marketing and human rights campaigns to spread across the web.

After confusing deaf viewers around the world with made-up hand gestures during Tuesday's Nelson Mandela memorial, the mysterious sign language interpreter told the AP that he was distracted by hallucinations of angels on the stage.

After sending many online gaming communities into a ravenous frenzy, the creator of what was thought to be an official promotional page for the upcoming role-playing game Fallout 4 announced that the site was merely an elaborate hoax.

YouTube and DJ Earworm present an end-of-year musical mashup highlighting some of the most iconic images and defining tunes of 2013, featuring an ensemble of celebrity video bloggers on the site.