A strong photography forum
An effective photography forum is Dgrin. It’s not only a place where you can post your images to receive a feedback from many professionals (that would be enough!). There are useful sections about techniques and also about the photography business, written by professionals, of course. It’s a place in which you can read effective posts, well written and aimed. Or, if you dare, you can express your thoughts or habits about photography, to get a feedback, with the real risk to make better a little part of your life behind a lens. Have a look and write a comment about that site!