Here are some links to interesting sites:
Basic robot building:
http://www.seattlerobotics.org/guide/index.html The Seattle Robotics Society has a project similar to the RSSC's Ebot project. It uses different servos and an HC11 microcontroller. This will give beginners more options on how to build their first (or second) robot.
https://members.tripod.com/RoBoJRR/basics.htm is a tutorial on basic electronics and has links to a number of other sites teaching electronics.
Trinity College Robot Firefighting Contest:
PID Control:
Robot Vision:
Navigation:
Laser navigation with passive reflectors by Richard Vannoy.
Robotics clubs:
Robotics Society of
Southern California
San Diego Robotics
Society