» 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

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

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