Pixel Ace is a powerful pixel ruler utility. Use it to measure the size of objects (in pixels) on your computer, including items behind the ruler. Completely resizable, adjustable transparency, the best pixel ruler out there. A must for any GUI designer/coder and completely free.
Pixel Ruler 3.10
Know the exact size and pos of any element.
Pixel Ads Script PHP - Pixel Advertising
24x24 Free Pixel Icons 2013.1
Impressing free set of pixel icons
Pixel 1.0 Beta7 bld 740
Photoshop like image editor
Pixel-Zip Image Compressor and Decompressor