From its birth as a way of linking a few university and defense laboratories in the late 1960s, the Internet has grown into a global network connecting between 30 and 40 million people (Elmer-Dewitt, 1995). Social linkages in the form of E-mail and discussion groups appeared in the first days of the Internet and have grown explosively ever since. Today there are over 5,000 Internet discussion groups (Hahn & Stout, 1994).