I hope it's OK to post this link here. If not please feel free to remove it.
This is a site I belong to for photographers. I gots tha camera but have a looooooooong way to go before I can call myself a photographer, but thought some of the talented people here might enjoy it.
It's a site that is based in the UK. I am sure they would really enjoy having some of these wonderful photographs post there. They don't sell anything so it's not a plug for business. Your photos stay yours.
In the Members Gallery they have different "challenges", or simi contest. Not prizes, just fun. http://www.pixalo.com/