HEATKEYS

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

Texas Instruments (TI) is a global analog and digital semiconductor IC design and manufacturing company.

Swarthmore College, noted for its Honors Program, integrates ethical and social responsibility throughout its liberal arts and engineering curriculum.

Electronic Ciruits portal of free electronic circuits, schematics, designs, or diagrams & other resources for engineers, inventors & students.

Computer Glossary, Computer Terms – Technology Definitions and Cheat Sheets from Whatis.com – The Tech Dictionary and IT Encyclopedia

Free source of SPICE circuit files and tutorials for the hands-on learning of electronics through the SPICE simulator. Also inlcudes SPICE basics and a command summary. Links to free demo versions.