Idea Hunters should check out:
http://bigideagroup.net/inventors/ideahunts_home.htm

I was one of 7 semi-finalists for their latest detective shopping hunt that had a $2,000 prize plus 1%-3% royalties. Unfortunately I wasn't chosen as a finalist.

They have some interesting success stories here:

http://bigideagroup.net/inventors/work_with_big.htm
http://www.bigideagroup.net/inventor...case_study.htm
http://bigideagroup.net/about/record.htm

You never know - you could end up earning royalties for an idea if it gets licensed.