Digital Photography School - A Resource and Community for Photography Enthusiasts
CameraDojo - A general photography blog, great tips and reviews.
Gizmodo Digital Photography - Gizmodo's pages that are focused on digital photography and cameras.
The Strobist - The site to understand Lighting and Photography
Stuck in Customs - One of the best HDR photographers
Photography Bay - The site for photography rumors
O'Reilly Digital Media - Great Lightroom / Photoshop content
John Nack on Adobe - Senior Product Manager for Photoshop
A Walk through Durham Township - Kathleen Connelly