Site originates from the Dept. of Computer Science, University of Pisa. Icon Bazaar More icons. There is one file of health care icons. Gifpile This is a big collection. The quality is uneven and some of the pages don't load completely.
Icons are very small and possible useful as buttons.
Backgrounds would have to be toned down for use on web. A list of clip art sites with many annoying animations. Much more tasteful and navigable site than most out there on the web. Amazing Clip Joint . A list of free clip art.