Intro and question

Hello Everybody,
Have been lurking on the sit for a while an planning my first 50 miler. About me 36yrs old...have been racing for over 20 years, but have been doing Xterra triathlons for about 6 years and ever trail race I can find running and MTB, and Xterra. Have done a hand full for trail marathons and would like to somehow incorporate my multisport training, cyclocross training and ultra training? Anybody have any input or thoughts? If anybody can steer me in the right direction toward a website, or coach, or book it would be greatly appreciated.

Well, I've got a book. UltraRunning magazine's big anthology book; "A Step Beyond: A Definitive Guide to Ultrarunning is great for new people. One of the first chapters is about how to prepare for and run your first 50M. I wish I'd read it before I did mine. For starters, it would have made the training more focused and a good bit EASIER.
There's a good website right here but also check http://www.ultrunr.com
Good luck and good running to you.

In addition to the above, here's a website/article that I stumbled across a long time ago, and I'm still impressed with the valuable information:

http://www.fitnessintuition.com/howtorun.htm

The author seems to have hidden the link to that page or spread the content throughout his newer blog (as I said, I found this page a long time ago).

Back when I first started looking around, the article above was the first I found that extolled the virtues of the run/walk strategy; his specific ratio is 5:1 (run 5 mins, walk 1). It is still amazing to me how many people still think any amount of walking is inferior; yet doing the walk/run strategy it's often much more efficient.

Well, have fun. If you come across any good information on this topic, feel free to post it here.