PeoplePerHour.com

A marketplace connecting small businesses and freelancers from all over the world. Basically they buy and sell services to each other - businesses can post a job they need done, and freelancers can bid on the jobs. Jobs vary from small one-off projects to on-going contract work.

It's free to create a profile, but PeoplePerHour.com does take a small fee for successfully fulfilled work. There are also some paid-for usage plans that you can sign-up for.