Sentencing Spammers
The US Sentencing commission has issued it's first draft guidlines for sentencing email spammers. You can read the full thing here (PDF file) (which includes guidelines for many other crimes as well.) Here is an exert:

The criminal penalty for a violation of section 5(d)(1) of the CAN-SPAM Act of 2003 is a
fine or imprisonment for not more than five years, or both.