These two articles are mostly about how LinkedIn is pursuing the job market in Hollywood, but in reality, this means they are focusing on Hollywood in general as a big market for them. 

Guess what?  The more Hollywood people are on LinkedIn, the more connections you can make.  So the ProSeries Alumni has made the right choice by making LinkedIn our primary networking tool. 

We’ve got some new strategies that we’ll talk about at the PS Alumni Strategy Session on Saturday, Sept. 6th.

Wired.com:  LinkedIn LaLa Land

NY Article:  Can Hollywood Save LinkedIn?