If you only click on one link today, make sure it’s this one: The Akinator.
What you do is you think of a character, any character at all, as obscure as you’d like. The Akinator will then ask you a series of questions and will almost always guess correctly. To show you the range of knowledge this guy has, when I played he correctly guessed:
Snidely Whiplash (from Dudley Do-Right), Tommy Gavin (from the show Rescue Me), Jareth the Goblin King (from the movie Labyrinth), Jafar (from Aladdin), Gonzo (he’s a Muppet, damn it!), Stinky (from Hey Arnold) – Took him 3 guesses this time, Jay Sherman (from The Critic) – Took him 2 guesses this time, Dobby (from Harry Potter), Mason (from Dead Like Me), Eek (from Eek the Cat), Goldar (from Power Rangers)
I did stump him one single time though, when I used Di Di Malloy (from The Riches) as my character, and then had to “introduce” her to his database after he was defeated.
What I love about this is that there’s no set amount of questions he’ll ask before guessing, so sometimes it seems like he hasn’t asked anything relevant and gets it right, and sometimes he seems to know it right away (I swear, when I chose Dobby, two of the first four questions were “Does this character have big ears?” and “Is this character from Harry Potter?”) but continues asking more questions anyway and gets it right.
UPDATE: After playing again, this time along with my brother, we stumped him once more with Charlie Calvin (from The Santa Clause) and Sam Franklin (the butcher from The Brady Bunch). To be fair, though, we had to look up both characters’ names.