Photo proofs
Agility Photographs
Recent agility event photography proofs can be viewed and purchased at Printroom.com
Photo Community/Contest Site
One of the first sites I visit each morning, Digital Image Cafe is a source of daily image inspiration.
Photo Tips & Techniques
A great site for product reviews, contests, and photography techniques, and if you're still a "hardcopy" person like me, Shutterbug is a great magazine to pick up at your local variety or bookstore.
An excellent source of digital camera reviews, Steve's DigiCams also has discussion forums and a daily photo contest.
Digital Photography Review is another terrific camera information site. I particularly like the side-by-side comparison you can use when you finally narrow your camera choices down to just a few.
Photo Blogs
Dujour.us is the first photo blog to catch my attention, and an inspiration to start my own photo blog.
Catherine Jamieson's book, "Create Your Own Photo Blog" led me through the process of setting up my own photo blog.