It’s been a banner week for the social Internet, and April Fool’s Day falling on a Friday doesn’t hurt either. Top of the list this week:

– Facebook allows profiles to convert to business pages. For anyone who got their business on Facebook in the prehistoric days before Pages, this is a really big deal; now you’re no longer faced with the dilemma of choosing between starting a page’s fan base from scratch or violating Facebook’s terms of service by remaining a “person” (not to mention looking a bit behind the times). It’s a one-way street, so anyone making the switch should use Facebook’s backup service first and remember that there’s no going back to personhood. Plus – at least for the time being, since it’s apparently been reported as a bug – you can’t presently merge pages, so if you’ve got both a page and a profile for your business, you’ll still have a duplication issue on your hands.
– Animal tweeting hits a new high. While @BronxZoosCobra isn’t the only zoo critter on Twitter – the Kansas City Zoo’s polar bear tweets as @NikitaTheBear, and Sea World star Shamu’s tweets were massively popular until the account went silent following an unfortunate incident with a trainer – the viral success of the escaped Bronx Zoo snake was pretty much unprecedented. As of writing, the cobra has 228,297 followers … over the course of five days of tweets. (It was the subject of its own April Fool’s prank, too – sorry, but rumors of the snake getting its own TV show are just that.)
– Closer to home and happily no joke, KC-K gets Google Fiber. Topeka may have temporarily renamed itself to Google, Kan. to draw attention to its bid to win ultra high-speed fiber network to the city, but the winning community in Google’s national search was Kansas City, Kan. If you haven’t watched the official announcement montage yet, it’s here – featuring some big names in Kansas City. Warning, geeks: It may bring tears of joy to your eyes.

And the rest of the April Fool’s pranks, long an Internet legend? To name a few: YouTube dolled itself up all 1911-style, Grooveshark went 3-D, Google launched Gmail Motion, Angry Birds fanatics got two alternative ways to fuel their addictions and … the list goes on. (We’ll only mention Funny Or Die’s Rebecca Black-izing their home page for the purpose of getting that terrible song stuck in your head, too.) Want the full April Fool’s roundup? Here’s a nice one from PC Mag.

What was your favorite online April Fool’s prank this year? Let us know in the comments. (And do you think the advent of Google Fiber in our area will prompt new, larger-bandwidth pranks next year? Maybe that’s just wishful thinking.)