Bicyclemania.co.uk
   Mountain bike trails in and around the U.K. as well as Europe. Also includes information on terrain, repairs, tips, and events.
   http://www.bicyclemania.co.uk

BikeRag
   Ride recaps, topo trail maps, and pictures to show you what the riding is like.
   http://www.bikerag.com

DirtWorld Trail Guide
   Extensive guide to US and Canadian trails from dirtworld.com.
   http://www.dirtworld.com/trails/

FellsBiker.com
   About mountain biking in the Middlesex Fells Reservation, Massachusetts. Includes maps, photos, and trail information.
   http://www.fellsbiker.com

GPS Mountain Bike Trail Guide
   Global positioning system waypoints, routes, tracks, and maps of singletrack biking trails in Northern California. Resources include a world directory of MTB sites with GPS data and a review of GPS cartography software.
   http://iron-horse.us/mtb/

Great Places to Ride
   Trails, maps and mountain bike ride photos. Links to other sites as well as a cycling log spreadsheet, maps and aerial photos. Southwest USA, Illinois, USVI, and Ireland.
   http://rjs.org/coolplcs.html

Kent Trails
   Information about mountain biking in south east Kent. Includes routes, events and contact information.
   http://www.kent-trails.co.uk/

MTB WNC
   Contains detailed trail information for Western North Carolina. Includes guided rides, maps, photos, and area information including bike shops and places to camp and stay.
   http://www.mtbikewnc.com

MTBReview.com: Trail Guide
   Community-member maintained and up-to-date database of trails across the world. Features ratings, number of reviews, length and difficulty of trails.
   http://trails.mtbr.com/

Michigan Mountain Biking Association
   Detailed descriptions of mountain bike trails in Michigan from beginner to expert.
   http://www.mmba.org/trails.php

Mont-Saint-Anne Mountain Biking
   Mountain bike network in eastern Canada. 200 kilometres and 14 downhill runs. Host of downhill, dual and cross-country Mountain Bike World Cup events.
   http://www.mont-sainte-anne.com/2/Lamontagne/Velomontagne/infogenerale/tabid/336/Default.aspx

Mountain Bike Rides - New Zealand
   The top 400 mountain bike rides in New Zealand.
   http://www.mountainbike.co.nz/rides/mtb/

Mountain Bike Routes, Maps and Guides
   Guide to mountain bike trails in the UK.
   http://www.bikemaps.co.uk/

Mountain Bike The Bruce
   Trails in the Adventure Park, Brant Tract, Carrick Trac, Bruce County, Wiarton, Paisley, and Mildmay.
   http://www.mtbthebruce.com/

Mountain Bike TrailSource
   An online adventure guide to mountain bike trails around the planet.
   http://www.trailsource.co.uk/

Mountain Biking - Australia
   Mountain biking tips, area information, and 38 suggested tours in the Mount Beauty gateway to the Alpine National Park and Bogong High Plains, Victoria, Australia.
   http://kiewaview.com/mountain_biking.htm

Mountain Biking Nelson New Zealand
   Track information, club news and calendar of events.
   http://www.nelsonmountainbikeclub.org.nz/

Mountain Biking Trail Source
   Contains detailed information for trails around the world. Subcription required.
   http://www.trailsource.com

Mountain Biking in York PA
   Information about mountain biking in the local Pennsylvania area.
   http://www.epgsoft.com/MBYork/

Mountainbike Trails
   Mountainbike trails in the Alps, mostly harder ones with lots of trial.
   http://members.aon.at/kris/mtb/index.html

MtbRoutes.com
   Resources to help plan your next off-road biking adventure. Editorials, user-contributions and online store.
   http://www.mtbroutes.com

MyBikeSite.com -- Southern California
   Southern California mountain bike trails, shops, and clubs.
   http://www.socalmtb.com/

MyBikeSite.com Trail Central
   US trails directory, add and update descriptions yourself.
   http://www.mybikesite.com/trails/

Ouachita Mountain Bike Adventures
   Trail guide for mountain biking trails in the Ouachita Mountains of Arkansas.
   http://www.ouachitaadventures.com

Redding Mountain Biking
   A club for all ages and fitness levels. Ride all over Northern California. Pictures taken are posted on the site.
   http://www.reddingmountainbiking.com/

Ridemonkey.com
   A mountain bikers online community. Features various mountain biking related discussions.
   http://www.ridemonkey.com

Rough Rides in Powys
   Rough Rides is a guide mapping rideable trails in East Radnorshire.
   http://www.roughrides.co.uk/

Singletracks.com
   Contains mountain bike trail information for the United States as well as some other countries. Free membership allows you to keep track of the trails you ride and the trails you want to ride.
   http://www.singletracks.com/

Stewards of San Francisco Mountain Biking
   A website to support and encourage better, safer and more responsible mountain biking in San Francisco and nearby areas.
   http://www.sfmtb.com/

The San Francisco Mountain Biking Page
   Reviews, descriptions, directions, and profiles of mountain biking trails in the San Francisco bay area.
   http://www.gatetrails.com/

TrailPeak
   Features trails in the Pacific Northwest, including the best mountain biking trails in B.C., with directions, images, and articles of interest.
   http://www.trailpeak.com/index.jsp?cat=bike

Trails.com
   Comprehensive hiking and mountain biking trail guides.
   http://www.mbronline.com/

Ultimate MTB Trails
   Mountain bike trails within the conservation areas in Kwa-Zulu Natal, South Africa.
   http://www.ultimatemtb.org.za/

Virginia Creeper Trail Guide
   Mountain bike trail information and resources for the Virginia Creeper Trail.
   http://www.vacreepertrail.com/

Whistler Off Road Cycling Association - Mountain Biking
   Cycling and mountain biking information in British Columbia, Canada.
   http://www.worca.com/