Neapolitan Club, Bridgewinners,Paul Gibson, Linda Lee, Peggy Kaplan, Steeve Bloom, Andre Asbury, Henk Uijterwaal, Oren Lidor, Eamon Galligan , Howard Bigot Johnson etc …..
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general interest duplicate bridge blog by G Davies with an emphasis on how computers can help answer some tricky bridge questions.
Google Group interested in bridge