Photoshopped variations of this screenshot from a Garry's Mod video are often used as profile avatars on YouTube, particularly when chain replying in the comments section of a video page.

Cory Booker has been the Mayor of Newark, New Jersey since 2006. His use of Twitter to interact with and help the city's residents has made him an internet superhero.

How to refuse an alcoholic drink:

1) Simply say “no, I don't drink."
2) Explain why you don’t drink.
3) If you’re still forced to drink, just run.

In the fallout of Manti Teo's girlfriend hoax, this 2010 documentary film Catfish has given rise to the neologism "catfishing," or tricking someone into an online relationship by assuming a false identity.

This unaired episode from the animated television series Dexter's Laboratory remained shrouded in mystery for years until it was uploaded to YouTube earlier this month.