Artist Biography Links
A Million Lives (http://amillionlives.com/)
Global Gallery (http://www.globalgallery.com/artist.bio.index1.asp)
WebMuseum from Paris. Artist Biographies (http://www.ibiblio.org/wm/paint/auth/)
other good sources are:
Encarta (located on the desktop)
library books: search the OPAC (located on the desktop)