LinkedIn Going Public Before Facebook?

It is now being said that LinkedIn, the social network for professionals, plans to sell public stock options this upcoming year. According to the story, the company, which has over 85 million profiles and makes money from advertising and premium account sales, has already chosen Morgan Stanley, Bank of America and JP Morgan as its financial underwriters, who all pitched the company back in November.

Other sources says LinkedIn is rushing their IPO in order to beat Facebook, who is not expected to go public until late 2012. 

As a new product professional, what do you use more? LinkedIn or Facebook?  Do you see the benefits in one over the other?

And - if Facebook went public before Linkedin, do you think anyone would pay that much attention to Linkedin?