A Stanford Law School online resource (via Hartley):

The Global Class Actions Exchange is an outgrowth of an international conference on the worldwide spread of class actions, group proceedings and other forms of collective litigation. It includes country reports; statutes, rules and important cases related to class actions and group litigation; commentary on global developments; contact information for experts who research or practice in the class action or group litigation area; and news of conferences and other events of interest to scholars and practitioners.