Tumblr is a huge resource of Anakin images. My favorite is link

DeviantArt has three Anakin image groups and an Anakin and Padme group:

Anakin-Fans link
Everybody Loves Anakin link
Anakin-Christensen link - I'm helping out at this group right now. My goal is to make it the biggest image library of Hayden-as-Anakin images on DA. Wish me luck!
Anidala link

The biggest source is of course DesiringHayden.net - WOW!

What are yours?