So, you're looking for info about The History Of..., as well as training info...

Training; I've really enjoyed the Spinervals training tapes, by Coach Troy. Spinervals has it's own website. They're up to like, 16 editions, think - Troy covers it all; base training, time trials, hills, intervals, technique - the whole nine!!! Comes in VHS & DVD. *he also does Runnervals - for treadmill workouts.

I also got a video from CTS - Chris Carmichael, (Lance's coach), makes training tapes also - haven't used it yet. Website its Trainright.com

History; Try going to Triathlete magazine's or Inside Triathlon magazine's wesites. If you can't find info there, I'm sure they have suggested literature.

You can probably find tri books on almost any tri gear websites - try; Tri-zone.com, USMultsportspub.com, All3sports.com...

There's lots more - but hopefully that's a good start