Umpire Links

Jim Evans Umpire Acadamy -  http://www.umpireacadamy.com/

LL National Umpires -  http://www.littleleague.org/umpires/  - Tips, equipment information and more...

Honigs -  http://www.honigs.com/ - Umpire equipment

Umpire Chat Group -  www.sports.groups.yahoo.com/group/llumpires - Yahoo! discussion group with some interesting discussions (and strong opinions) - recommended for experienced umpires.

Official Baseball Rules OBR - http://www.mlb.com/mlb/official_info/official_rules/foreword.jsp - From the official Major League Baseball site. Keep in mind that in some cases Little League rules vary from OBR.