Handy and nicely executed.
graphics
Clipping Magic
Rather impressive way to easily remove backgrounds from images online.
Retro Vectors
NounProject
A beautiful, constantly expanding set of free icons. I wish there was an obvious method to download all icons at once.
User Interface Design Framework
A large set of resources for those who use Illustrator for wireframes. It includes 290 free vectors icons and 200 graphic styles, all free to use. This looks very useful indeed.