Dribbble is a great community made by designers for designers (and the designers at Dribbble are innovative and creative).
You share a bit of your work (120,000 pixels or less) and you receive a lot of feedbacks. So you can improve your mockups very quickly (right now it works with an invitation system to maintain the level very high).
I love that fact that you don’t need just to make nice things but you have also to “select” few pixels to show it.
In other words just the best.

Here you find 25 lovely examples…