This answer is from What are the best places to look for temporary or freelance work?
Ashley said
I'd suggest creating some business cards (you can get free ones on Vistaprint), mapping out industry networking functions and mixers, and selling yourself and your service at the events. Sites like guru.com are good places to pick up freelance projects. However, on those sites you will typically make less money as you have numerous freelancers trying to underbid each other just for the job.

