All the Virology on the WWW was launched in 1995, but was last updated around 2007, which unfortunately means many of the links collected here are broken for one reason or another. Still a good place to go for information about viruses!
Anatomy of the Human Body (published in 1918 by Henry Gray), here in web format for easy reference and complete with thousands of detailed entries and hundreds of beautiful engravings.
CELLS Alive! is a neat web resource for cell biology, microbiology, immunology, and microscopy. Published and updated continuously since May, 1994.
Histology-World was the first link ever placed on this site and provides hundreds of photos of various tissue slides magnified under a microscope. Also some games and other resources!
Instant Anatomy is a pretty comprehensive (but simplified) atlas of human anatomy. The free site allows you access to the image collection, but a subscription is required to view most of the other content.
Eventually, this will be a place for my own pages about these topics and others,
but I'm currently busy learning the material I want to share freely on this site.
For now, I'll share some useful links I've come across. If you know of any other
websites that would fit in here, let me know and I'll add them!