Set up your requirements for a digital camera, and this little widget will give you a list of cameras that fit. Or search by name to find the specifications for a camera you're already interested in. The database currently includes 585 cameras from:
Generally you'll want to leave most of the features as "Any" and search on just a few items. Also, try using the '~~' operator, which means 'approximately' - plus or minus 30%, or in the case of the announcement date plus or minus three months.
Steve's DigiCams, review links
Digital Photography Review, review links, timeline
Imaging Resource, review links
megapixel.net, review links
Digital Camera Resource Page, review links
Yahoo's digital cameras and digital photography pages.
DMOZ's digital cameras page.
About.com's cameras page.
Lowepro D-Res camera bag finder.
Amazon.com's digital cameras page.
ACME Labs / Digicams