Photography can be a lonely occupation. Not everyone has contact with collegue photographers, or uses those contact to develop themselves. Fortunately the internet is there to help you reach out and stay up to date. Our EAGERmagazine of course a good example ;) The Footo Forum is another example. By having other photographers criticise your photos and returning the favour, you will grow as a photographer. Even if it were only because of you focussing on the subject of improving. Spoken word is Dutch however, so be prepared to use translators where needed!
You'll find communities and competitions here. Both are motiviting and inspiring. In some way participants form communities too ;)