CC Search, aka Creative Commons Search Engine, is moving to WordPress.org, which has also “hired key members of the CC Search team”. WordPress CEO Matt Mullenweg also states on his blog of CC Search… “audio and video [are] soon to come” with the support of WordPress.org.
CC Search should not be assumed to be a one-stop solution. It appears, for instance, to be completely useless for DeviantArt. Presumably DeviantArt is traffic-shy in that respect, and its bots are being blocked there. If WordPress could find a way to have DA open up, that would also be a major boost to the service.