- Bicyclemania.co.uk - Mountain bike trails in and around the UK as well as Europe. Also includes information on terrain, repairs, tips, and events.
- BikeRag - Ride recaps, topo trail maps, and pictures to show you what the riding is like.
- DirtWorld Trail Guide - Extensive guide to US and Canadian trails from dirtworld.com.
- FellsBiker.com - About mountain biking in the Middlesex Fells Reservation, Massachusetts. Includes maps, photos, and trail information.
- 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.
- 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.
- Kent Trails - Information about mountain biking in south east Kent. Includes routes, events and contact information.
- Michigan Mountain Biking Association - Detailed descriptions of mountain bike trails in Michigan from beginner to expert.
- 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.
- Mountain Bike Rides - New Zealand - The top 400 mountain bike rides in New Zealand.
- Mountain Bike The Bruce - Trails in the Adventure Park, Brant Tract, Carrick Trac, Bruce County, Wiarton, Paisley, and Mildmay.
- Mountain Bike TrailSource - An online adventure guide to mountain bike trails around the planet.
- 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.
- Mountain Biking in the San Bernardino National Forest - Trail information and pictures of various mtb rides in the San Bernardino National Forest and some other locations.
- Mountain Biking in York PA - Information about mountain biking in the local Pennsylvania area.
- Mountain Biking Nelson New Zealand - Track information, club news and calendar of events.
- Mountain Biking Trail Source - Contains detailed information for trails around the world. Subcription required.
- Mountainbike Trails - Mountainbike trails in the Alps, mostly harder ones with lots of trial.
- Mt. Bike Whiskeytown - Mountain biking trails at Whiskeytown and Shasta lakes near Redding, Northern California. Full trail descriptions along with many pictures and quotes.
- 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.
- 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.
- MtbRoutes.com - Resources to help plan your next off-road biking adventure. Editorials, user-contributions and online store.
- MyBikeSite.com -- Southern California - Southern California mountain bike trails, shops, and clubs.
- MyBikeSite.com Trail Central - US trails directory, add and update descriptions yourself.
- Nick's Cool Routes - North and South Downs, Quantocks, Brecon Beacons, Coed Y Brenin, Lake District, Peak District (UK), also the Alps (Les Gets, Morzine), Pyrenees (Luchon), Lake Garda, Moab (Utah), Winter Park (Colorado) and links and reviews.
- Northern New York Trails - Trails and maps for the North Country (Jefferson County) for mountain biking, hiking, camping, and cross-country skiing.
- Ouachita Mountain Bike Adventures - Trail guide for mountain biking trails in the Ouachita Mountains of Arkansas.
- Redding Mountain Biking - A club for all ages and fitness levels. Ride all over Northern California. Pictures taken are posted on the site.
- Ridemonkey.com - A mountain bikers online community. Features various mountain biking related discussions.
- Rough Rides in Powys - Rough Rides is a guide mapping rideable trails in East Radnorshire.
- 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.
- 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.
- The San Francisco Mountain Biking Page - Reviews, descriptions, directions, and profiles of mountain biking trails in the San Francisco bay area.
- The Singletrack Classroom - Online guide to building and maintaining mountain bike trails.
- Trail Design Specialists - Specializing in the design of sustainable multi-use trails. Design information and techniques from experienced mountain bike and multi-use trail designers.
- TrailPeak - Features trails in the Pacific Northwest, including the best mountain biking trails in B.C., with directions, images, and articles of interest.
- Trails.com - Comprehensive hiking and mountain biking trail guides.
- Ultimate MTB Trails - Mountain bike trails within the conservation areas in Kwa-Zulu Natal, South Africa.
- Virginia Creeper Trail Guide - Mountain bike trail information and resources for the Virginia Creeper Trail.
- West Coast Mountain Biking and Hiking Trails - Trail descriptions and reviews from Oregon, California, and Washington. Also includes ride pictures and trail ratings.
- Whistler Off Road Cycling Association - Mountain Biking - Cycling and mountain biking information in British Columbia, Canada.
