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I didn't know about that page, Merric. I've been using the individual lists like this: Prestige Class Index. There's a compilation page as well - Consolidated Lists Archive. The nice thing about those index pages is that you can sort them by column.
-blarg
As the others have said, it is in Masters of the Wild - a book rarely found these days, as it has not been in print for nearly ten years, I think.
However, there can be found online a NWN prestige class for archers. It was based upon the Peerless Archer as I recall, but modified to fit in the PC game.