Do Not Contact Compliance and Direct marketing techniques Guide - Advertising and marketing Review
	Forrester Research Paper entitled 'Outsourcing Do Not Call Compliance: Carrier Options'.
Realtor.org Do-Not-Call, Do-Not-Fax, and Do-Not-E-mail field guide.
SalesLeads.tv Offers 'do not call' compliant lead lists.
AMCAT Offers call systems which provide comprehensive 'Do Not Call' features as well as relationships with the major 'Do Not Call' vendors.
Nb of rev= 4 - Software for Direct Marketing