How Many Clicks?

In the party game "Six Degrees of Kevin Bacon," players try to connect the actor to other Hollywood stars through movies he has appeared in. In research done at the University of Notre Dame, physics professor Albert-Laszlo Barabasi tries to connect Web pages scattered throughout cyberspace. The professor's conclusion: If you exclude direct links and avoid search engines, Web pages average 19 clicks between them.

To continue reading this article you must be a Bloomberg Professional Service Subscriber.