[samsheen]

It really depends on what you are building. If your domain is say Retail, then you should try and find someone with that domain expertise. I am of course assuming that you are a techie and do not have much experience in that domain.

One source of such partnerships that people often overlook are - current customers. If you have a customer who is really passionate about the project, there is a chance he might be interested in working on it with you.