Every working relationship is unique, and should be treated that way. Generally speaking for first time customers I ask for a 20% kill fee up front as well as payment made via escrow for both of our protection. After one or two successful jobs the terms can be shifted depending on how comfortable we are working with one another.
Feedback on Guru.com?
I will return positive feedback ONLY after receiving the employer's feedback. I was burned a couple times early on, although it didn't affect me because of the massive amount of honest positive feedback, and that's my policy. If it's a good project and you give me positive feedback, I will ALWAYS return the favor.
My e-mail address is firstname.lastname@example.org and can be used to ask me any further questions, however don't ask me to do work outside of Guru.com in the beginning unless you're willing to pay up to 75% kill fee since there are no safeguards for my work outside this site.