HEATKEYS

YouTube is a place to discover, watch, upload and share videos.

International Electronic Discussion Forum: EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals

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

GlobalSpec is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.

Synopsys

RP Photonics Consulting GmbH, provider of technical consulting services in areas like laser design, amplifiers, nonlinear optics, fiber optics, fiber lasers and amplifiers, ultrashort pulses, multilayer optics, noise in optics, and optoelectronics.

Offers a single source to search the Web, images, video, news from Google, Yahoo!, Bing, Ask and many more search engines.

An expanding collection of freely available, interactive Demonstrations in math, science, and many other areas--at all levels from elementary education to front-line research.

Solar Cooking is a community site that anyone can contribute to. Discover, share and add your knowledge!

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