
Adafruit Industries - Unique DIY electronics
"Adafruit Industries is a small company that sells kits and parts for original, open source hardware electronics projects featured on ladyada.net as well as other cool open source tronix that I think are interesting and well-made.
All the projects are redesigned specifically to make it easy for beginners to make: nicely silkscreened circuit boards, through-hole parts whenever possible, extra large solder pads, etc. For some kits, you can purchase just the circuit board. To save paper, the easy-to-follow-with-lotsa-pictures instructions are all available online, at ladyada.net-make."


Arduino Open-source Electronics Prototyping
Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.

The Arduino board is a cheap, robust i/o board based on the ATmega168. It has 13 digital pins (6 of which allow PWM output) and 6 analog inputs. There are USB, serial, bluetooth, and mini versions,

Home Improvement Projects - Black and Decker
Find information on woodworking projects, planting, kitchen and bath, outdoor projects, and more.

"We will build the best possible metal detector and offer the best customer service." This was the simple yet confident philosophy of Charles and Eleanor Garrett in 1964 when they introduced the world to The Hunter, the first Zero Drift, dual searchcoil detector made." 
"Charles Garrett's most prized find is this 16th century Spanish icon of the Virgin Mary with Christ child, discovered with a Master Hunter detector on Guadeloupe in the Caribbean."

Instructables - Craft DIY Tech Hobby
"Instructables is a web-based documentation platform where passionate people share what they do and how they do it, and learn from and collaborate with others. The seeds of Instructables germinated at the MIT Media Lab as the future founders of Squid Labs built places to share their projects and help others. Read more about the history..."