Ionic Bonding 

Chemistry teaching software which simulates the bonding of Ionic compounds on screen. Learn how Ionic compounds are formed by atoms gaining and losing electrons. Includes a reference section to support students learning.
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Covalent Bonding 

Chemistry teaching software which simulates the bonding of covalent compounds on screen. Learn how covalent compounds are formed by atoms sharing electrons. Includes a reference section to support students learning with basic facts and information.
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EMBook 

This free collection of tests in arithmetic, pre-algebra, algebra, trigonometry, hyperbolic trig and calculus offers step-by-step solutions together with extensive reference material and interactive training technique.
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Chord Miner 

Manage chords and chord sets with this superb reference and repertoire tool from the publishers of Guitar and Keyboard Coach. See, hear, print and save the chords you do know, identify the ones you don't, then check out which songs use them.
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TLB2HTML 

TLB2HTML is a COM and ActiveX reference documentation tool, providing full HTML Help authoring in , MSDN-like, CHM format. It supports smart 'See Also' link generation, language filtering, pop-up windows, color templates, IDL export etc.
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CompDoctor 

CompDoctor is a reference tool that helps you fix bugs without having to take your PC out for repair or having to pay for someone to come in your home and do it for you. Browse through symptoms and cures, or search by category or symptom keywords.
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