Today in Tech: Zynga goes publicDecember 16, 2011: 3:00 AM ET
Fortune's curated selection of tech stories from the last 24 hours. Sign up to get the round-up delivered to you each and every day.
* Zynga (ZNGA) raised around $1 billion in its initial public offering (IPO), giving the social gaming champ a $7 billion valuation. Check out colleague Dan Primack's list of the biggest winners to come out of this, including CEO Mark Pincus, Kleiner Perkins Caufield Byers, and Institutional Venture Partners. (Fortune)
* Walter Isaacson may expand his bestselling biography of Steve Jobs beyond its current 630 pages. Plans include potentially releasing a heavily-annotated version or one with an addendum discussing the period around Jobs' death. (Fortune)
* Research in Motion (RIMM) reported its third quarter earnings: profits of $265 million on $5.2 billion of revenues, a significant drop from $329 million in profit just last quarter. Meanwhile, the company said a new line of BlackBerry smartphones have been pushed off to late next year (VentureBeat and The New York Times)
* Salesforce.com (CRM) is buying Rypple, a "social performance platform" that swaps out the traditional employee performance review with a more social and collaborative approach. Details of the deal were not disclosed. (TechCrunch)
* Facebook's recently-unveiled profile redesign, called Timeline, is now available to the social network's 800 million-plus users. (Facebook)
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