Rules of Pitch:
From bidding to the end of the round.
http://sky116688.tripod.com/pitch/rules.html
Pitch:
Links, rules and software.
http://thehouseofcards.com/pitch.html
Corellian Pitch:
Features rules, software, and history on this variant of pitch.
http://www.math.unl.edu/~lcharbon/Cards/CorellianPitch/
All Fours Group:
Overview of six Pitch-style games: All Fours, All Fives, Smear, Nine
Card Don, Pedro/Cinch/63/83, and Setback/Pitch.
http://www.pagat.com/allfours/
