I would say (and most of you seasoned runner's probably would too) that trail running is the fastest growing area of running. Trails seem more crowded with runners. Every running brand seems to be releasing AT LEAST one trail shoe model/year. Trail "challenges" and/or races are popping up all over the place as well. Although many runners (myself included) love running trails year round, it seems like summer and fall are the most popular months to run trails in a race or not. Nothing like a good muddy or snowy one in the winter though, right!? Anyway, here's some info and links to get you psyched up!
The PIKES PEAK MARATHON took place yesterday. This marathon is gnarly just check out the race results page HERE to get an idea of the ass kicking that this marathon hands out. The LEADVILLE 100 also took place on Saturday. The ULTRA TRAIL DU MONT BLANC is Europe's answer to the WESTERN STATES 100. The Ultra Trail Mont Blanc is starts this week in France. Also, for all the details about the race here's a exceptional UTMB ARTICLE from TrailRunningSoul.com. Check out this course map!
Here's a link to Geoff Roes' (the 2010 Western States Champ) BLOG POST about getting ready for the UTMB. If you live on or near the West Coast of the USA then here's a great link, PACIFIC COAST TRAIL RUNS.