USSSA Fast Pitch Softball Rule Book (9th edition, 2010)
Maps to Colorado softball and baseball fields
Organizations:
West Jeff Boys Baseball
Girls Softball League of Jefferson County (GSLJC)
USSSA Colorado
USSSA National
Triple Crown Sports National
ASA Colorado
Informational forums:
Colorado Girls Softball Fastpitch Discussion and Information Forum
National Forum on Girls' Fastpitch Softball
