Booya!
iStockPhoto - Stock photos for various purposes, fairly cheap. If anything I browse to learn some composition skillz.
Digital Photography Review - good reviews of Fruit Great and Small.
Strobist - a great blog with tutorials and vast amounts of info about uses of light and flash.
Washington Post Photography - photojournalism essays about a wide variety of topics.
Photoethnography - another great blog by a sociologist/anthropologist who is also a fantastically talented photographer. Most of her work is in Asia, and she also has a lot of technical pearls of wisdom that are very helpful for various skill levels.
The Leica M guide - great for cool photographers. Uncool people need not apply. The author is certifiably insane, so for sheer entertainment value if nothing else.
The Ultimate Exposure Computer - a systematic way to use your brain to figure out the best exposure when on Manual mode for you digital nerds.
The Online Photographer - yet another good blog with lots of extras.
The Luminous Landscape - a pro photographer's site packed with lots of tutorials and some good photos to boot.
Photography Forms - A series of .pdf forms that you can print out to keep track of your exposures when out in the field. This is probably more important for film photography than for digital.
Digital Truth - despite the "D" word in the title this is a good photography and darkroom supply company for film photos of all formats. Except digital
