From the creativecommons.org blog:
Our good friend and new media sociologist Alek Tarkowski from CC Poland has been working hard to compile data for a new report on Flickr user patterns and content licensing. This’ll be a great boost for deepening our developing case study, and will go a long way to supporting our ongoing efforts to develop an understanding of how creators release their works.
But he needs your help to gather data! You can get a link to his short survey here. Definitely worth the few minutes.
For more on CC Poland’s work check out their site.
I, for one, use Flickr both to showcase my cc-licensed work and to search for other cc-licensed images. Help spread the word!