If you really want a great place to learn photography, enter competitions, get CC and learn from the best in the industry, join Beyond Just Images ....
http://www.beyondjustimages.com it is US$25 for the year but worth it. This month Jen Bebb and Tony Bridge are teaching and next month Jessica Claire. It is really for those wanting to pursue photography as a career rather than a hobby, but it is awesome. Pm me if you want to have a quick "look" before joining up. It is a capped community so you won't get "lost" like I do on Props, ILP, etc. some of these large forums, you never get cc or questions answered cos you are lost in the crowd kwim?