How do you get your name off mailing lists so that you receive less
commercial advertising mail delivered by the post office?

There are many online guides that will help you to reduce the amount
of "junk mail" you receive. Here are links to ten of the best that
I've seen, and several search strategies for finding more info on this
subject.

Obvious Implementations Corporation: Stop junk mail, email and phone calls
http://www.obviously.com/junkmail/

DMA Consumer Assistance: The Mail Preference Service
http://www.dmaconsumers.org/offmailinglist.html

Privacy Rights Clearinghouse: Reducing Junk Mail
http://www.privacyrights.org/fs/fs4-junk.htm

AccessIndiana: How to Reduce Unwanted Mail
http://www.in.gov/idem/reducemail.html

Fight Identity Theft: Rid Yourself of Junkmail and Pesky Telemarketers
http://www.fightidentitytheft.com/junkmail.html

Computer Professionals for Social Responsibility: How to Get Less Junk Mail
http://www.cpsr.org/cpsr/privacy/junkmail.html

CEXX: Junk Mail
http://www.cexx.org/junkmail.htm

CNN Money: Trash Your Junk Mail
http://money.cnn.com/2001/11/01/saving/q_junk_mail/

EcoFuture: The U.S. Post Office
http://www.ecofuture.org/jmusps.html

The American Institute of Philanthropy: Seven Tips for Reducing
Unwanted Mail and Phone Appeals
http://www.charitywatch.org/articles/seventips.html

Google search strategy:

Google Web Search: "reduce junk mail"
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22reduce+junk+mail

Google Web Search: "reducing junk mail"
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22reducing+junk+mail

Google Web Search: "end junk mail"
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22end+junk+mail

Google Web Search: "less junk mail"
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22less+junk+mail

Google Web Search: "stop junk mail"
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22stop+junk+mail

Google Web Search: "unwanted mail"
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22unwanted+mail

Google Web Search: "opt out" "junk mail"
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22opt+out%22+%22junk+mail

Google Web Search: "mail preference service"
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22mail+preference+service

(NOTE: searches which contain the phrase "junk mail" can also be tried
using the single word "junkmail". This will provide different
results.)

I hope this information is useful. Most of the articles linked above
assume that the reader is in the United States. If this is not the
case for you, or if anything I've said is unclear, please request
clarification; I'll gladly offer further assistance before you rate my
answer.

Best regards,
pinkfreud

Thank you very much.  You provided me with exactly what I wanted

Thanks for the five-star rating and the nice tip!

~pinkfreud