On-Screen Ruler - lightweight, free, semi-transparent ruler
JoyDownload - Collection of free software and shareware programs to download
Bluegrams Screen Ruler - A lightweight and configurable ruler tool for Windows Desktop.
Fileion - Fileion is a software-related website where you can download and get reviews software.
Pixus - Pixus is an AIR pixel ruler application, a handy tool for web and interface designers.
Five Star Shareware - A fast reliable download site that lists only the top rated Windows and Mac Apps.