Todd Gross' Weather and Astronomy Site
Includes astro-product reviews and astrophotos.
http://www.weatherman.com/

Scope Reviews
Many different telescopes listed. Also contains accessory reviews, photos and advice on purchasing a telescope.
http://www.scopereviews.com/

MakScopes
Reviews and discussions of Maskutov Cassegrain telescopes.
http://www.lafterhall.com/makscopes.html

Cloudy Nights Telescope Reviews
Objective reviews submitted by astronomers. Also features discussion forum, binocular reviews, and tips for beginners.
http://www.cloudynights.com/

Telescopes.uk.com
A resource site for amateur astronomers. Includes information, advice, equipment reviews, listings of manufacturers, and amateur telescope making.
http://www.telescopes.uk.com/

Test Reports
From Sky and Telescope magazine. Reports on telescopes, binoculars, imagers, and accessories.
http://skyandtelescope.com/resources/testreports/

Affordable Astronomy Equipment Reviews
Reviews of inexpensive equipment, sorted by type.
http://members.tripod.com/irwincur/

Light Pollution and Narrow-Band Filters
Article by Dave Knisely of the Prairie Astronomy Club.
http://www.prairieastronomyclub.org/filters.htm