And, with the spotlight burning so brightly on social media as a potentially powerful marketing channel, most eyes have been on Facebook and the other consumer-centric networks in its shadow.

FORBES: With LinkedIn IPO, B2B Marketing Gets The Spotlight

The extraordinarily sudden success, if that is the right word, of the social media campaign by three American advocacy groups aimed at shining a big spotlight on the notorious Ugandan rebel leader Joseph Kony has prompted some scathing reactions from plenty of well-informed quarters.

BBC: Joseph Kony campaign under fire