So I just started my own group called StockDesign http://stockdesign.deviantart.com/. It's all about stock :-)
Simply because I wanted a place where I can gather all the stock that is completely free and available here on deviantArt. Only restriction, it has to be available for "Personal and Commercial" use. No credit needed, no backlinks needed, just Stock that gives you as a designer the opportunity to create something new and great.
For a start i also included some of the works i did. If you like the idea help to spread the word and join the group :-)
Link to the Group: http://stockdesign.deviantart.com/