Marketing Usenet and List Servers
A Beginner's Guide to URLs
Copywriter.com-lists
Direct E-Mail List Source
E-Marketer
Greenfield Online
Iconocast
Internet help and training resources
Liszt of Newsgroups
Marketingtips.com-newsletter
Marketingtips.com-tipsltr
Online Advertising Discussion List
TechMailings - Internet Lists
Tile.net (directory of listservs)
Web Marketing Forum