What?s in the Mail
Reference library for Canadian direct mail and a resource centre for marketing companies to use for collecting competitive information.
http://www.whatsinthemail.com/
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William-Neil List Management
Cabela's list management offers a list brokerage, direct mail, list rental,and package insert program.
Worldata, Inc.
Information services, including direct mail lists, specializing in high tech, computer and business to business direct advertisers and mailers.