Here is a short list of useful internet sites, covering college football reference data, national media, official NCAA and NAIA pages, conference and division pages, rating systems and comparisons.
Reference
rec.sports.football.college - an outstanding collection of college football information maintained by David Wilson
National Media
Sports Illustrated College Football
Rating sites
Official NCAA and NAIA pages
The National Collegiate Athletic Association - Football
National Association of Intercollegiate Athletics (NAIA) - Football
Conferences and Divisions
NCAA Conference and Membership Links