Deviant Art
The web's largest art community. It features not only photography and digital art but also traditional art, crafts, literature, anime, flash, film, & more. Membership is free.

Pixel Perfect
Master digital artist Bert Monroy's Video tutorials of tips and tricks for Adobe Photoshop and Illustrator

Worth1000
Great site for photographers, artists & writers. Loaded with contests, galleries, forums,  tutorials, free online tools & more

TheatrePics
This site is where I have posted several hundred theatre production photos which I have taken over the past few years. I created it in order to share the photos with the performers but it is open to anyone who wishes to view them.