I love designspiration... I even set it as my homepage!
I'm on dribbble.com almost everyday for inspiration even though I don't have an account to post yet! Ugh.
Designspiration is also fun. Here are some others I've found:
I like dribbble.com for UI and web related stuff
DeviantArt, Pinterest, Behance.com for design inspirations
take a look on http://www . freepik . com/