I think a lot of people severely underestimate their ability to teach others. I didn't think I had any information of value to give to freelancers until I wrote my book and was overloaded with "thank you" emails (and $$$). And I know a lot of other people selling infoproducts (including Jim) that have gone through the same experience.

I'd encourage everyone reading this to think about what you have to offer that someone else might want. Is this something valuable that they'd pay for? Chances are, if this someone can make a better living from your research, they will pay. It's really one of the most rewarding win-win I've experienced.