• Adland Digest
Discussion list on marketing and promotion of 22,000 subscribers. Lots of real time discussion of web promotion and marketing issues. 100's of new subscribers each month.

• DiscussionLists Directory
A directory of duscussion list on a variety business topics including website promotion, with summation of each publication.

• I-Search
Discussion list about understanding internet search technology."

• Liszt
Mailing list directory

• The_List_of_Lists
Search one of the largest directories of special interest group e-mail lists (also known as listservs) available on the Internet.

• Traffic_Circles
Moderated discussion list at NewBizBuilder that deals with Promotional Tips, Tools and Reviews. Subscribers can contribute Articles, Comment & Links