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Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

OptionsEducation.org (formerly 888options.com) offers a wide variety of options education including online classes, glossary, quotes, options chains, and tutorials on options basics, equity options, index options, LEAPs and volatility.

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Astronomy labs and teaching resources developed at the University of Nebraska-Lincoln. Includes simulations, flash animations, graphics, in-class questions and ranking tasks.

Get tools and resources, and learn more about developing for the BlackBerry smartphone.

High quality RC flight simulator for radio controlled models. Supports normal game pad. Many RC planes and helicopter models included. Import your own flying field or RC model.

Watch and Play model of Solar System Planets and Constellations moving over the Night Sky.

Authoritative site with tips, tricks and news about the iPad--just for pilots. We cover apps, accessories and more. Brought to you by Sporty's Pilot Shop.