HEATKEYS

A 2d game engine for iPhone / iPad / iPod Touch that

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

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Gamedev.net is the leading resource for game developers, featuring daily news updates, over 1500 featured articles and tutorials, and the most active game development forums anywhere!

The Math Forum is the comprehensive resource for math education on the Internet. Some features include a K-12 math expert help service, an extensive database of math sites, online resources for teaching and learning math, plus much more.

eXtreme Gammon, play, analyze, learn.

Alta Plana, a consultancy for Internet and database architecture, design, and development.

A technical resource that provides easy-to-understand tutorials for Flash/ActionScript. C#, WPF, Expression Blend, PHP, Photoshop, and more!

Scientific physics forums for professionals and students to discuss serious issues and topics regarding physics in theory, practice, study and reality. Students can also find help for homework and career perspectives

XahLee.org — a intellectual excursion in math, programing, visual arts, and humanities. Math reference works, programing tutorials, photo galleries, social commentaries, classical literature collection. 4983 pages total.

Comprehensive encyclopedia of mathematics with 13,000 detailed entries. Continually updated, extensively illustrated, and with interactive examples.