For Nikon users my three favorite bloggers are:

1) Thom Hogan

http://www.dslrbodies.com/newsviews/


2) Ming Thein

http://blog.mingthein.com/

3) Brad Hill

http://www.naturalart.ca/voice/blog.html


All three are accomplished professional photographers. Hogan and Hill (the second is anti-hunting for the most part) are well-know wildlife photographers and Ming Thein is best known for his product photography (especially high-end wrist watches) but all have a very informative style. You can learn a lot by reading them.