California's DO NOT CALL List (pre)Registration (Outdated. Use the FTC link above!)
Visit http://www.ag.ca.gov/donotcall or call 888-398-7867 for more information about the California State program.

CA Atty General's ANTI-SPAM Page - Good information is available here.
FCC Page on Unwanted Telemarketing Calls
FCC Consumer Alerts and Factsheet
FCC Page on Unwanted Junk FAXes
Stop Junk Calls.com - a Californa-based site for fighting telemarketing calls.
SBC PacBell Opt Out of 3rd Party Marketing Lists - 800-310-2355

To put your name on the Telephone Preference Service, mail a request with your name and phone numbers to: Telephone Preference Service Direct Marketing Association P. O. Box 9014 Farmingdale, NY 11735-9014.

To remove your name from direct mailing lists to stop junk mail, mail your name, variations of your name, other names of household members and your address to: Mail Preference Service Direct Marketing Association P. O. Box 9014 Farmingdale, NY 11735-9014

You can register online to receive fewer unwanted e-mails at http://www.dmaconsumers.org/emps.html.

Alaska, Hawaii, Washington, Oregon, California, Idaho, Montana, Wyoming, Arizona, Colorado, Nebraska, Kansas, Oklahoma, Texas, Minnesota, Wisconsin, Illinois, Missouri, Arkansas, Louisiana, Indiana, Kentucky, Tennessee, Mississippi, Alabama, Georgia, Florida, Maine, Massachusetts, Vermont, Rhode Island, New York, New Jersey, Pennsylvania, Virginia, and Connecticut all have state Do-Not-Call lists enforced by law to one degree or another.

Nevada, Utah, Ohio, North Carolina all have state laws pending. Contact your state legislator and encourage support for these laws. Yeah, this time really do it!

North Dakota, South Dakota, Iowa, New Mexico, Michigan, New Hampshire, Delaware, West Virginia, Maryland, and South Carolina have no laws governing telemarketers and no laws are pending.