A couple things:<p>1) This is a two-sided market problem. In order for a two-sided market to succeed, you need to jump-start it with either a bunch of chickens or a bunch of eggs. See <a href="http:&#x2F;&#x2F;www.joelonsoftware.com&#x2F;articles&#x2F;fog0000000054.html" rel="nofollow">http:&#x2F;&#x2F;www.joelonsoftware.com&#x2F;articles&#x2F;fog0000000054.html</a><p>2) It takes time and effort for someone to package up a task such that a total novice to the project can pick it up and work on it.