Here are Important Links for Mailing Lists, Direct Mail, Direct Marketing, and Mail Order.

National Mail Order Association- International Direct Marketing Network
http://www.nmoa.org

All about finding and using Mailing Lists for Direct Mail
http://www.listsformarketing.com

Expert Direct Mail and Mailing List Selection Help
http://www.nmoa.org/Membership/growbusiness.htm

Direct Marketing Events, Seminars, Education & Trade Shows
http://www.directmarketingevents.com

Direct Marketing Research, Books, and Advertising Guides
http://www.nmoa.org/catalog

Building a Home or Small Business Book using direct marketing
http://www.nmoa.org/DirectMarketingToolkit

Information on Call Centers for taking orders by telephone
http://www.directmarketingcallcenters.com

Information on Fulfillment Centers for the delivery of orders
http://www.mailorderfulfillment.com

Free Direct Marketing and Mail Order News by email
http://www.nmoa.org/freestuff.aspx

Find New Products to sell
http://www.nmoa.org/Products

Sell your Product to Catalogs
http://www.catalogtimes.com

How to get Free Publicity
http://www.publicitymaker.com 

Direct Marketing Associations of the World
http://www.directmarketingassociations.org

Direct Mail and Catalog Printers
http://www.DirectMarketingPrinters.com  
 
Direct Marketing Vendors of all Types
http://www.nmoa.org/Contacts

Copywriting Courses and Direct Mail Sales Letter Training
http://www.expertcopywritingcourses.com