I recently signed up with 500px, in my opinion one of the best photo sharing communities on the web right now. Check it out here 500px.com
For a pretty cheap $20 a year you can upload as much as you want, and its really easy to organise all you images into sets. There’s even the opportunity to sell your stuff.
It’s also a great place to get some inspiration, with thousands of amazing images uploaded every day by users.
You can check out my portfolio here 500px.com/andydbancroft/sets