The Parli Prepbook, a resource created for the NPDA debate community, is available for $10 per electronic copy, and provides comprehensive explanations of debate speeches, arguments, and theories.
The FV Playbook, a compilation of generic NPDA arguments created by Kehl Van Winkle and Liz Featherton from the University of Oregon, is a useful resource for frontlines and blocks, kritiks, and kritik answers.
CHSSA's Intro to Parliamentary Debate, a handbook created by Claremont Colleges' Kate Shuster and John Meany (veteran parliamentary debate coaches) that describes the very basic obligations and rules of parliamentary debate in California.
Known Parli Leagues
Kansas City Metropolitan Parliamentary Debate League