McCrone Atlas
The McCrone Atlas of Microscopic Particles is an online reference for analytical microscopists needing to identify an unknown, or who simply want to learn more about a particular substance
http://www.mccroneatlas.com
MicrolabNW
A pictorial guide to understanding how the microscope is used to solve problems as well as a gallery of thousands of photographs just to be enjoyed. These images are provided free of charge for everyone to enjoy, learn from, and share with others.
http://www.microlabgallery.com/photogalleryname.aspx
