http://www.fcc.gov/cib/consumerfacts/cramming.html http://www.ftc.gov/bcp/edu/pubs/consumer/products/pro18.shtm http://www.puco.ohio.gov/PUCO/Consumer/information.cfm?id=5704 and particularly http://www2.counton2.com/cbd/news/consumer/article/cramming_charges_on_phone_bills_are_latest_scam/55950/