'Rip ' graphs from anywhere - very useful free tool for scientists and engineers (via lifehacker.com)
The freeware Engauge Digitizer can extract graphs from common image formats such as BMP, GIF, JPEG, PNG, XPM and export data to Excel, Open Office Calc, Matlab, gnuplot and Mathematica.
Perfect if you want to use that data graph in a book, paper or PDF file for your own project! No more having to manually extract data points from a curve.
This one is a keeper folks.