Over a hundred comments and dozens of likes. That’s a record for a link posted on Google Wave’s fan page on Facebook! Not that they’ve announced an exciting new feature, or linked to a tutorial that makes their product comprehensible. No, they seem to have posted a link to a Flickr account with pictures of a naked Asian girl under the shower. Ouch!

Expect the “Become a fan” button in ads to disappear in favor of “Like”. Facebook has determined that its users click “Like” twice as often as the “Become a fan” button, so the company decided to scale back on the word “fan” and instead focus on “like” in order to increase brand engagement from consumers.

Facebook today improved its search with the addition of a drop-down list that instantaneously appears while you’re typing in your search query at the top search box. It will display people, events, groups and pages you’re connected with, but “also the connections of your friends and globally relevant results”.

Confirming the previously rumored check-in feature, the New York Times has learned from anonymous sources that Facebook will take the wraps off a new location-based feature in late April.

A new batch of Facebook viruses is currently annoying thousands of users of the social network. One of these pests is spreading through the link: http://youtube.torrent-galaxy.in/

This week’s Facebook fad is one for the movie buffs. For movie line week, you’re asked to post your favourite movie quote and get your friends to guess its origin.

This week, reface.me officially turns one year old. And what a freshman year it has been!

Facebook Gold Accounts do not exist, so ignore all the Facebook Gold Membership Upgrade status updates, links, groups and pages being passed around!

Foursquare, beware! After Yelp nicked your idea, it could be that the big F is after you too.

Less random than say, doppelgänger week, the current Facebook trend is all about upcoming Valentine’s Day on February 14th. The idea is to set a photo of both yourself and your partner as your profile picture, and tell the world how long you’ve been in a relationship.

Since its birthday earlier this month, Facebook officially has 400 million (active) users. If the social network were a country, it’d be bigger than the United States! Only China and India have larger populations.

Looks like the new Facebook layout isn’t the only big news today. According to Michael Arrington, Facebook is preparing to compete with webmail giants like Gmail, (Windows Live) Hotmail andYahoo by completely rewriting its messaging feature. Makes sense, because when you think of it, it’s a superfluous step to receive an e-mail that you’ve received a message.

Wait. Didn’t we just declare Doppelgänger Week? We did, but the Facebook community is like a kid with Attention Deficit Hyperactivity Disorder and while you just switched your profile picture to Brad Pitt or Heidi Klum, there’s another trend happening right now and it’s called Urban Dictionary Week, Day, or however long it lasts.

The Facebook Data Team has analyzed all hundreds of millions of status updates in the U.S. ─rest assured, they processed all data anonymously─ to discover the top trending words and phrases for 2009. Here’s the top 15 from the Facebook Memology report.