Pesäpallo

Introduction to Pesapallo
Features rules, diagrams, history, comparison to baseball, and teams in Finland.
http://www.nic.funet.fi/index/sports/pesapallo/pesapallo.introduction.ver102

Pallonz
Contains a brief history of game, the rules and an explanation of game play for New Zealand's version of Pesapallo.
http://pallonz.bravehost.com/index.html

Pesaepallo World Cup 2006
The 5th Pesaepallo World Cup was held in Munich-Germany
http://worldcup2006.pesis.de/

Pesapallo
Includes a videos, a history of the game, equipment information and related links.
http://www.pesapallo.net/

Pesäpallo
Includes a history of the game, plus the official rules and vocabulary.
http://www.pesis.fi/pesapalloliitto/international_site/

Wikipedia: Finnish Baseball
Brief article describing the sport and its history.
http://en.wikipedia.org/wiki/Finnish_baseball