Microscopy Overview
Microscopes are devices designed to enable us to see things that are otherwise too small for our naked eye to observe.
Microscopy Overviews
http://www.microscopy.fsu.edu/primer/index.html
http://science.howstuffworks.com/light-microscope.htm
http://microscopy.fsu.edu/optics/webresources/index.html
http://microscopy.org/ProjectMICRO/
http://www.microscopyu.com/sitemap.html
The first microscopes were rather primitive and allowed magnification of objects with little resolution.
History of Microscopy
http://www.microscopyu.com/museum/firstnikon.html
In the centuries since their initial development, microscopes have been drastically improved, and our ability to both magnify and resolve objects has increased drastically.
Magnification and Resolving Power
http://www.biologymad.com/cells/microscopy.htm
http://nobelprize.org/physics/educational/microscopes/powerline/index.html
http://www.microscopyu.com/articles/formulas/formulasresolution.html
Here are some pointers about how to use a microscope.
Microscopy Tutorial
http://www.micrographia.com/tutoria/micbasic/micbpt01/micb0100.htm
If you are interested in interacting with others who engage in microscopy, here are links to societies you might wish to get involved with:
Microscopy
Societies
Microscope Society of America -- http://www.microscopy.org/
Royal
Microscopical Society -- http://www.rms.org.uk/