Stories by Kristin Burnham

After months of rumors and speculation, Facebook finally filed for its IPO late Wednesday, disclosing details of its astounding growth, revenue, technology and user base.

One of the most anticipated tech IPO filings ever revealed what everyone already knew: Facebook is stinking rich.

Facebook calls them "sponsored stories" and LinkedIn calls them "social ads." And you've likely seen them: small modules in the margin of your screen that promote a company or product with information on which of your friends or connections "like" or "follow" that brand.

It's no secret that <a href="http://www.cio.com/article/697702">Gen Y</a> lives and breathes social media. And while some businesses consider it a time-sink, others are looking to capitalize on this generation's skills to further its business goals. That's where Larry Gee, a professor at San Jose State University, comes in.

Facebook announced yesterday that Timeline--its redesigned profile page--is becoming mandatory for all users. If you don't switch to Timeline on your own, Facebook will do so for you within "the next few weeks."

You probably have a handful of Facebook friends who post too often, play too many games or share too many pictures. These well-intentioned friends end up flooding your News Feed with noise.

Facebook opened the floodgates to its "new class of apps" Wednesday, unveiling its partnership with more than 60 applications that let users share more about their daily lives.

Google sparked controversy on Tuesday with the announcement of a major search update that includes content from its budding social network, the announcement posted on Google's blog, Google Fellow Amit Singhal says, "Search is still limited to a universe of webpages created publicly, mostly by people you've never met. Today, we're changing that by bringing your world, rich with people and information, into search."

You know the typical labels associated with Gen Y, or people between the ages of 18 and 29: They are more tech-savvy than other generations, are achievement-oriented and, some would say, are an entitled group that's infiltrating the workforce.

When 80 percent of people reportedly don't know how to use LinkedIn properly, a New Year's resolution is born.

If you're not a fan of Facebook's new Timeline, you're not alone. In a <a href="http://blogs.cio.com/facebook/16698/3-things-youll-hate-about-facebooks-timeline">CIO.com poll</a> of more than 600 people, 87 percent responded that they dislike the new profile design.

Facebook made waves last week as the social network finally rolled out Timeline, it's newly redesigned profile, to all users worldwide.

If you describe yourself as "creative," "organizational" or "effective" in your LinkedIn profile, you may want to rethink the words you use.

Once again, Facebook founder Mark Zuckerberg <a href="http://www.cio.com/article/696130">was hacked</a>.

Facebook is all about personalization--from the pictures you post to <a href="http://www.cio.com/article/591831">integration with the websites you visit</a> to the profile information you share.