DistroWatch - 9 hours ago - It does include a proprietary software set optimized for business users, students, researchers and developers." A list of features and further details can be found in the company's release announcement.
Bluegrams Screen Ruler - A lightweight and configurable ruler tool for Windows Desktop.
Distro Chooser - This test should help you while choosing the best Linux Distribution for you.
Meazure - What are the dimensions of that image? How big is this window?
The LiveCD List - This site was created to help sort through the many LiveCDs available.
Pixus - Pixus is an AIR pixel ruler application, a handy tool for web and interface designers.