USA Cycling: Cyclocross 
Features the rules, equipment guide, technique, training, results and news regarding the sport in the United States.
http://www.usacycling.org/cx/Cyclocross World
Cyclocross news, reviews, how to's, race results, and pro shop.
http://www.cyclocrossworld.com
Cyclo-cross.com
Dedicated to cyclo-cross coverage. Cyclocross news, results, photos, event calendars from around the world and an online club / team.
http://www.cyclo-cross.com/
West Hill Shop
Cyclocross at West Hill Shop in Putney, Vermont
http://www.westhillshop.com/
CrossNet
Cyclo-cross resource with services such as a calendar of local race series and associations, a how-to guide for building cross bikes.
http://www.maddogmedia.com/crossnet/
The Beginners Guide to Cyclocross
An informal introduction to the sport.
http://www.geocities.com/Yosemite/4606/
Central Coast Cyclocross Series
An annual series of races in and around Monterey, California.
http://www.cccx.org/
East Midlands Cyclocross Association
An organization of 50 cycling clubs who organize cyclocross events in England. Magazine, classified listings, and rankings.
http://www.emcca.demon.co.uk/
Surf City Cyclocross Series
Santa Cruz county, California
http://www.cyclo-x.com/
Boston Cyclo-cross Association
Race coverage and results
http://www.bostoncross.com/
The NVV Cyclocross Circuit
Cyclocross information, training guides, and schedules from the Napa Valley Velo racing team.
http://members.aol.com/napavelo/cross.htm
Cross Crusade Series
Cyclo-Cross Series in the Portland, Oregon metro area. Presented by the Fat Tire Farm. Features photo gallery, registration information, results, weather and contacts.
http://www.crosscrusade.com/
Hawaiian Cyclo-cross
Cyclo-cross coverage from the Hawaiian Islands
http://members.tripod.com/cyclocross/
The American Cyclo-cross Foundation
An organization helping American cyclo-crossers with the costs of elite-level competition.
http://www.maddogmedia.com/acf.html
East Anglian Daily Times Cyclo Cross League
News and information on events for cyclocross riders in the counties of Norfolk, Suffolk, Essex, Cambridgeshire, Hertfordshire and Bedfordshire in the UK.
http://easterncross.users.btopenworld.com/
UCI Cyclocross
The International Cycling Union's guide to cyclocross, including World Championship and World Cup results, and international rankings and rules.
http://www.uci.ch/english/cyclo_cross/rankings/rankings_2002_03/index.htm
