You might as well check for programmers who are willing to do services from you in oDesk. It's also one good place and it's a legitimate outsourcing site. For reviews of oDesk, freelancer and other legitimate outsourcing sites, you can visit this link:
http://www.timedocto...how-to-use-them These reviews are base on experience so it's really tested.
You can also read some tips there on who and from which country are the best programmers in C. To mention some, people from Russia are very good at programming but have higher rates. People from Philippines and India are good too and they have lower rates. You can check their profile pages so you can evaluate them base on their ratings, feedback and experiences.
Also, take note on the tips on how to post an effective job so people who will read it can understand the job posting.
Edited by Rheena, 21 July 2011 - 12:02 AM.