For complete postal information, explore the U.S. Postal Service site. It offers numerous downloadable documents and publications. www.usps.com

For communications and information about the USPS MERLIN program, go to: www.usps.com/merlin/about.htm

For information and resources on new and upcoming postal programs, such as the Intelligent Mail Barcode (IMB) and Flats Sorting Systems, go to: ribbs.usps.gov/

Find USPS forms and publications for downloading. www.usps.com/about/formsandpublications.htm

Look up correct address formatting and complete ZIP Codes on individual U.S. addresses. zip4.usps.com/zip4/welcome.jsp

Tension Envelope is a regular exhibitor and attendee of the annual National Postal Forum, sponsored by the USPS and held in cities around the country. For information on upcoming forums, visit this web site. www.NPF.org

For daily news on postal matters and the mailing industry, visit this site. www.postalnews.com

Organizations and information of interest to direct mail marketers:

The Association for Postal Commerce (PostCom).
www.postcom.org

The Direct Marketing Association.
www.the-dma.org

The Direct Marketing Club of New York.
www.dmcny.org

The Chicago Association of Direct Marketing.
www.cadm.org

The Direct Marketing Association of Washington (DC)
www.dmaw.org

The Direct Marketing Association of St. Louis
www.dmastl.org

The Kansas City Direct Marketing Association.
www.kcdma.org

The Direct Marketing Association of Southern California.
www.dmasc.org

Online publications for direct marketers:

DM News
www.dmnews.com

Target Marketing
www.targetmarketingmag.com

Direct
www.directmag.com