Review Sites:

The Digital Camera Resource Site
The Digital Photography Review
Imaging-Resource.com
Photo.net
Photography Review.com
Steve's Digi-cams Reviews, News, & Info

Photographers:

The Photography of David Bailey
The Nature Photography of Steve Bloom
Black Horse Studio
The Landscape Photography Christopher Burkett
The Landscape Photography of Joe Cornish
The Landscape Photography of Jack Dykinga
The Photography of Martin Evening
Flowers & Butterflies by Lorenzo La Verde
The Amazing Photography of Tall Ships by Max
The Photography of Steve McCurry
The Photography of Melissa Milligan
The Fashion Photography of Daniel Klajmic
The Landscape Photography of Richard Hamilton Smith
The Photography of Tom Stoddart
The Landscape Photography of Hardie Truesdale
The Photography of Raymond VanderWoning

Stock Photography:

Fotos Search Stock Image Archive
Stock Photography of Tall Ships by Max

Equiment:

Camera Manufacturers:

Canon USA
Contax
Ebony large and medium-format professional view cameras
Hasselblad
Kodak
Konica-Minolta
Kyocera Imaging - inclusive of Yashica and Contax cameras
Leica
Mamiya - Medium format cameras
Nikon USA
Olympus
Pentax Worldwide
Sealife Underwater Cameras
Sigma USA
Tamron Lenses - inclusive of Bronica Medium format cameras

Organizations:

American Society of Media Photographers
International Freelance Photographers Organization
North American Nature Photography Association
Northeast Nature Photographers
Professional Photographers of America