RGP/rec.gambling.poker and is the grand daddy of poker discussion forums. RGP is a Usenet newsgroup and can be accessed via a standard newsreader or via a web interface, such as the one linked below.

RGP is totally unmoderated, so among the excellent and insightful information you will find the usual flotsam of pyramid schemes, unfounded accusations and general misinformation.

If you have the time to wade through it, a visit is definitely worthwhile.

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