Many of us probably have interesting hobby/free-time software project ideas that could benefit from non-software experience that we might not have ourselves, like art, graphic design, music, and so on.
How do you find project partners that have artistic skills to augment a software project? These people probably aren't visiting SourceForge, Kenai, etc.
How do you find trustworthy people who want to do neat side-projects, for nothing more than the same open-source glory we'd hope to achieve ourselves?