Electronics

Field Computing
A PC The Size of your Phone Jack?
PC Slim

Projection
Project from the Palm of your Hand

Battery Life
Using Energizer Lithium Batteries in Backcountry Gadgets
HP Breaks the 24-Hour Notebook Battery Life Barrier

Battery Chargers
Devotec Solar Charger
MTI MicroFuel Cells Uses a methanol fuel 'cell' to get 25 hours of portable appliance charging. The cell can be replaced with a fresh one. Not clear if the cell is rechargeable.

Antennas
How To Build A Tin Can Waveguide WiFi Antenna

Internet Access
Hughes Net

Radio Networks
The Evergreen Intertie
EchoLink
AMSAT Satellite Related Software

Radio Weather
Radio Propagation