Original Post
Not sure if this is the right forum for this, but here goes: http://www.gamedev.net/reference/articles/article546.asp returns a 404 'file not found' error ("Basics of Game AI" from the "Artificial Inteligence" section). Edit: http://www.gamedev.net/reference/articles/article547.asp also has the same error, and is by the same author ("Introduction to Learning in Games", same page). Both articles have icons indicating they are on the Web, not on GDNet, but his other articles are on GD, and the address is here too.