ClickWorkers was a small NASA experimental project that used public volunteers (clickworkers) for scientific tasks that require human perception and common sense, but not a lot of scientific training.
Clickworkers could work when and for how long they chose, doing routine analysis that would normally require months of work by scientists or graduate students. The web site and database were created and are being maintained by one engineer working part time, advised by two scientists. The pilot study was sponsored by the NASA Ames Director's Discretionary Fund.