Social Media Watch: Black Friday vs. Cyber Monday, Nokia, MySpace and more

Nokia designers post YouTube videos answering users' questions (about new devices and mobile phone design in general) tweeted with a #nokiadesign hashtag.

Which brands got the most check-ins on Black Friday? Target, Wal-Mart, Best Buy, Toys R Us and Apple. Target puchased the #blackfriday hashtag on Twitter and duly became the #1 store for Foursquare check-ins, which accounted for 25% of all check-in activity on Friday. Verizon, meanwhile, is paying for the #cybermonday hashtag on Twitter today.

NASA, the White House and PETA top a new ranking of social media savvy by public brands.

Ben & Jerry's woos UK fans with bovine logo-related Facebook search for Britain's best panto (aka pantomime) cow.

BlackBerry and Kraft share their social marketing lessons with Ad Age.

China's Tencent eyes Facebook's success, as Facebook welcomes former president George W. Bush to its HQ today.

FaceSpace: One man's vision of a merged Facebook and MySpace — which News Corp. is "open" to selling.

Foursquare's Dennis Crowley gives advice to entrepreneurs.

Groupon may or may not have been acquired by Google.

Quora, from former Facebook CTO Adam D'Angelo, posts Q&As with execs from Netflix and other brands.

Quorus, meanwhile (a social mobile app) hopes for Cyber Monday lift.

Twitter announces James Franco and Anne Hathaway as host of the Oscars.

Vostu, a Brazilian social game startup, raises $30 million in funding.