Here are some useful and helpful links.

http://www.usfirst.org - The FIRST robotics competition site.
http://www.firstcadlibrary.com - Ed Sparks' collection of FIRST CAD models.
http://www.nuts4first.net - Presentations, tutorials, and guides on organizing and operating a FIRST team.
http://www.chiefdelphi.com - A popular forum discussing any FIRST-related topic.