Turma,
Seguem alguns bons links sobre MVC:
http://java.sun.com/blueprints/patterns/MVC.html
http://java.sun.com/blueprints/patterns/MVC-detailed.html
http://java.sun.com/blueprints/guidelines/designing_enterprise_applications_2e/web-tier/web-tier5.html
http://www.ootips.org/mvc-pattern.html
http://www.dsc.ufcg.edu.br/~jacques/cursos/map/html/arqu/mvc/mvc.htm
Abraços.