It is no secret that Facebook is leading the social revolution with their Open Graph push. As you buzz around the web, you'll see more and more social marketing in the form of Facebook's "Like" button. And it's only a matter of time before other social networks follow suit.

Maybe not in the same ilk, but LinkedIn is jumping on the social feature bandwagon with the roll out of a follow feature.

Unlike Twitter's follow, LinkedIn's "Company Follow" enables users to keep tabs on job openings, promotions and other activities specific to companies.