JR Screen Ruler is a very useful and compact utility that allows you to accurately measure anything on your screen. I use it all the time to measure space in various browser windows, size of photos and graphics.
Pixie How many times have you run across a site with a truly inspiring color scheme? Just don’t know how to communicate those colors to your web designer or printer? Run your mouse over any on screen object and Pixie will tell you the hex, RGB, HTML, CMYK and HSV values.
Inkscape is an open-source (free) vector graphics editor similar to Adobe Illustrator, Corel Draw, Freehand, or Xara X. Professional graphic artists use vector graphics so logos & illustrations can be enlarged without loss of quality. This is especially important for sign graphics. You can also create Flash-like web content using Inkscape because was designed from the ground up to use Scalable Vector Graphics.