National
High Magnetic field laboratory
Everything you always wanted to know about microscopy, plus all the
things you should know, presented via these really accurate and informative
java applets. One of a kind. Funded in part by the sales of neckties
featuring microscopic images of alcoholic beverages.
Purdue University
Cytometry Laboratories
J. Paul Robinson's Imaging and Cytometry site. A wealth of information,
including some very nice sets of downloadable Powerpoint lecture notes.