Nielsen buys SocialGuide to help advertisers understand link between Twitter and TV ratings

Nieslen has acquired SocialGuide in a move to broaden its media research capabilities and connect the dots between Twitter and TV ratings.

The web can’t shut up about Apple’s iPhone 4S

The most talked about smartphone on the web from July to December was none other than Apple’s iPhone 4S.

Apparently, the company didn’t need to introduce a radical new version of its popular device to command a lion’s share of …