If you are a budding/amateur photographer or even a pro, the digital Photography School’s Forum is a good site to bookmark. Discussions on equipments, photography techniques and some good critiques help you learn and master the art.
I particularly like the Digital Photography Assignments where one of the admin’s sets the topic and in the next 2 weeks you need to shoot something on the topic and share with all on the forum. My first submission was for the Assignment: Purple and this is the image I posted.
I used my new Canon Rebel XTi with the 18-55mm lens kit for this shot. And I am happy to hear all the comments which fellow flickr members have left in there on the sharpness of the image. It’s been good encouragement and I am hoping to attempt some shots for the current assignment: Ghetto Lighting.
Kapil's Korner 
realy gud one, u did a nice job