Interesting article on CNET News:  The Taxman Cometh Back, by Steven Musil:

If you once scoffed at those e-mails warning of an e-mail tax, brace yourself: you may soon be paying a lot more to use the Internet. The era of tax-free e-mail, Internet shopping and broadband connections could end this fall, if recent proposals in the U.S. Congress prove successful. State and local governments this week resumed a push to lobby Congress for far-reaching changes on two different fronts: gaining the ability to impose sales taxes on Net shopping, and being able to levy new monthly taxes on DSL and other Internet-service connections. One senator is even predicting taxes on e-mail.

Pro-tax advocates this week advanced a flurry of proposals pushing in that direction. A bill was introduced that would usher in mandatory sales tax collection for Internet purchases. Then, during a House of Representatives hearing the same day, politicians weighed whether to let a temporary ban on Net access taxes lapse when it expires on November 1. A House backer of another pro-sales tax bill said to expect a final version by July.