It’s been a pretty busy week, and a very busy 24-hour period out there. LinkedIn’s mobile overhaul isn’t insignificant, so I’d advise you to pay attention to that, though Twitter did take a pretty big step forward in solving their advertising model — and I’d have to salute them for that. Here’s your Social 6:… Continue reading Twitter Advertising, LinkedIn Mobile Revamp, $174 Facebook Fans: the Social 6 for 4/18/13