I was part of a demo today for a cool new job board.  JIBE - it adds a layer of social media on top of the traditional job board functions.  Its a start up in NYC that's backed by DFJ and Polaris to name a few.  They have heavy hitter clients like Intel and Bank of America but have seen a big up tick in smaller tech start ups join.  The idea is that if you want to apply to a job on their site you need to upload your info from Facebook or linkedin.  As a candidate you can see which connections in your network are currently working at the job posters company.  As an employer you can see who the applicant is connected to at your company.  It works with indeed, simply hired and Juju to name a few and runs sponsored ads for you daily.  They have 250k users and 1mm unique visitors monthly.  Not a bad idea.  Check them out. http://www.jibe.com/