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Trilithon Protractors is a Mac OS X app for web developers and graphic designers...

ASL Dictionary allows you to learn American sign language.

Prepare for the Adobe Certified Expert (ACE) product proficiency exam.

GRE Calculator is designed to help you with long calculations.

Time Out reminds you to take regular breaks when using a computer for hours to avoid bad habits and over-straining.

Teaches the concepts of decision trees for regular pattern recognition.

Windows

Windows Mac

Bryan Herger

xdrawchem

Free

XDrawChem is a two-dimensional molecule drawing program.