7Cove DemoRec
Capture screen actions and sounds. Useful for capture streaming internet video.

SI-Metric Kids
A pictorial US/metric unit converter with a timezone database and encyclopedia

PageSpy
The easiest way to show source, analyze forms, query, cookie and more

Equation Wizard
Automatically solves algebraic equations of any order written in any form

AcroLexic
Dictionary with 150 000 acronym and abbreviation definitions