April Fools' Day: 2010's best online pranks?

Let the online games begin! It’s April Fools Day and the Internet is celebrating. A few of the pranks we’ve spotted this morning:

• Funny or Die becomes Bieber or Die. This is kinda genius. It will introduce Funny or Die to a whole new demo as young girls visit the site to see exclusive videos like “Bieber After the Dentist,” “Justin Bieber Screensaver,” and “Dramatic Bieber.” Warning: It also means he’ll be trending again on Twitter today.

• Google changes its name to Topeka. This is in response to the mayor of Topeka, Kan., unofficially changing his city’s name to Google for the month of March as a way to compete for a spot in Google’s Fiber for Communities program, which will bring experimental, ultra high-speed broadband networks to a small number of locations.

• ABC.com advertises exciting new shows likeThe Blind Sayid (pictured) and Grey’s Astronomy (funnier would have been if they said Defying Gravity was returning), as well as a crossover event in which All My Children‘s Erica Kane gets stranded with the Lost castaways.

What else is out there, PopWatchers?

(UPDATE: Joel McHale ‘hacking’ Ryan Seacrest’s Twitter and web site could be the winner.)