News

Slashdot

This news site focuses on technology and geek issues.  Quite enlightening reading, if I do say so myself.  This is a site that tends to get reloaded frequently throughout the day...

Software

Red Hat Software

These guys make one of the most popular Linux distributions, which is used by the AE0LIS Constellation extensively.

Freshmeat

This is one of the most comprehensive software repositories for Linux and Linux-related packages that I've seen.  Definitely a must-read.

Hardware

Ars Technica

This isn't quite exclusively a hardware site, but it's got lots of interesting ideas for tweaking your system, as well as hardware reviews.