I found this Guinea Pig page .Eva's Cavy Page. I think it's really good.
This site has a page called Eva's Sick Cavy Page. It has pictures of some of
the diseases and problems that guinea pigs can get like hairloss from mites,
abcesses, and overgrown teeth. The pictures aren't very nice to look at but
after reading some of the newsgroup posts about these problems It's helped me
to understand whats going on with your pigs. Maybe this page will be helpful to
some of you to.
Visit My Homepage -- Ally's PokeIsland