Opinions on best resources

Wanted to check with you-all (Translation: cracker for "everybody out there") about the two or three best resources you've found for coaching. Can be a book, video, audio tape, site, coaching aid (like the Coacher board -- not a machine -- well, if you want to name machines, go ahead) or the like. Can be just on one topic (like hitting or pitching), strategy, the youth game, or whatever else you've found especially helped you & that you'd recommend others look at.

Two that have helped me immensly are the trilogy of Ned McIntosh's books ("Managing Little League Baseball", as well as a drills and a Tee-Ball book) and "Beans About Baseball." The McIntosh works are so compressed they seem simplistic, but the longer I've coached the better those resources seem. They really address an incredible number of situations (from scouting and drafting to practice strategy and handling parent problems, etc.). The "Beans" book presents a series of how-to explanations for hitting and throwing skills, as well as a lighthearted look at strategy. It may be out of print, but I'm sure Amazon.com can dig it up . . .

What say the rest of you?