Marathon and Beyond - Magazine published six times a year - website contains tables of content, sneak previews and ordering information. St. Louis Ultrarunners Group - Provides club news and events, including registration materials. Run100s (Run Hundreds) - Stan Jensen's ultramarathon guide, especially focusing on 100 mile events and others in northern California. Includes information and statistics for the top races in the USA, personal achievements, and goals. North Texas Trail Runners - Information on trail running and ultra running in North Texas. Features calendar listings and a news/opinion section. American Ultrarunning Association - Membership details, race listing, USA National Ultra Team, description of the organization and related links. New York Ultra Running - Contains details about races in the area, highlights, pictures, directions, and membership details. Extreme Ultrarunning - Resources, links, and general information. Includes runners' profiles, calendar, photographs and race reports. Sri Chinmoy Marathon Team - Organiser of ultrarunning events in more than 30 nations, including the world's longest certified race of 3,100 miles in New York. News, photos, race information and results. Kevin Sayers UltRunR Site - Resources and opinions on topics ranging from training and racing tips to equipment recommendations. Team CRUD (Coloradans Running Ultra Distances) - Ultra trail running information, photographs, news, and links. Multidays.com - Resource for multi-day events with calendars, news, results, and training information. Kansas Ultrarunners' Society - Includes event descriptions, member biographies, pictures, newsletters and membership information. Get Ultra Running - A resource for ultra runners and those wanting to go beyond marathon distance for the first time. Endurance Planet - Podcasts related to endurance sports including ultrarunning, cycling, triathlons, and adventure racing. UltramarathonRunning.com - Ultramarathon running races, training and information for ultra running enthusiasts. Trail, mountain, desert, 24 hour and other long distance endurance events. iRunFar.com - Blog with race reports, shoes and gear reviews, training tips, ultramarathon and trail running news. International Association of Ultra Runners - Provides organizational information, newsletters, race listing and coming events, training tips, and links. English and Chinese versions. Australian Ultra Runners' Association - Seeks to promote ultramarathon running in Australia. Provides a race calendar, results, news, and links. UltraRunning - US based magazine offering calendar of events, articles on nutrition and training, news and results. Ultrarunning World - On-line magazine offering road, track and trail ultra distance news. EnduranceBuzz.com - Exploring trail running and ultramarathons in the south Midwest United States. Includes training articles, race and gear reviews and regional race guide. The ULTRAmarathonRunning Store - Online running clothing, gear and equipment shop.