If you are looking for work, here are a few sites that advertise for production companies and jobs in the industry all over the country and throughout the world:
[link="http://www.mandy.com"]Mandy.com[/link]
[link="http://www.craigslist.com"]Craigslist[/link]
[link="http://www.entertainmentjobs.com"]Entertainment Jobs[/link]
[link="http://productionhub.com"]ProductionHUB[/link]
These are a few that I find to be fairly reliable when searching for gigs.