I like coding, have been doing it for 10+ years now. Looking for some side income.
When switching jobs, it's always a good idea to refresh some basic stuff and be prepared for typical .NET/Ruby/JavaScript/etc questions. Would you pay for such service?
Companies, particularly those starting out, might pay to get practice giving interviews (or help refine what they are looking for and how they can best find it).
Maybe the two could be paired up?
Just throwing out ideas here... slap them if you want to.