Anybody know any good sites if your moving and don't know anybody there?

I currently live in central Wyoming and am really thinking about moving to Northern Colorado but don’t know anybody there. I have heard its a pretty cool place to live and it would offer more carreer opportunities for me since all there is in Wyoming is the oilfield and thats just not me. But what I am wondering is if there are any good sites to meet people or ask them questions. Besides facebook since you have to know people on there.