Photography can be crowdsourced through camera club competitions at PicTurk. PicTurk dubs itself as a “community-driven platform where digital photographers meet consumers of digital imagery.”
Camera clubs can use PicTurk to run online competitions, giving members a way to get exposure for their photos. Designers, marketers and art directors looking for the perfect image, meanwhile, can post a brief on Picturk that describes what it is they're looking for.
Thus, PicTurk is a big help for creative individuals who love photography.