My rules for use are simple and painless.
1. Let me know if you use my stock via a not.
2. Give me credit for my picture in your description and add a link back to the source image.
3. If you want to use it outside of DA or commercialy let me know and give me credit.
4. My photos cannot be used in a pornographic manner, or in a way that blasphemes the Christian religion. If you have any doubts about the latter, send me a note. Im into horror, just not Jesus bashing and such. To see what I mean check out my own gallery of scary crap as Bracey100: http://bracey100.deviantart.com/ here on DA.
See painless. I hope you guys enjoy the stock.