Hello! Well tax time is here, and Lifehacker had a good article about deducting business expenses: [twocents.lifehacker.com]. They had a link to a 100-pg. PDF [www.nase.org] . It's from the National Association for the Self-Employed. It seems to have lots of information and is easy to use (it's a big download, so be warned!).
I had no idea there was an NASE. Glad I found this though. Had to share with you!