Your top 3 training articles

everything i think i know about tri training is parsed from the internet and tested in-house. what are everyone’s 3 favorite articles about training plans/philosophy?. mine are:
Mark Allen’s method of monitoring base training progress and intensity.
http://www.xtri.com/article.asp?id=448

Summary of work by Billat. Prescription for how to do VO2 intervals:
http://www.pponline.co.uk/encyc/1030.htm or
http://www.pponline.co.uk/encyc/0600.htm

Mark Allens’ when to do high intensity:
http://it1.insidetri.com/train/tips/articles/1472.0.html

there are others but these three go pretty well together and they are nice and simple so i don’t get confused. what are some others?