BizWeb E-Gazette - A great weekly newsletter with over 25,000 subscribers about marketing and running a business online.

ClickQuick Files - A Bi-weekly newsletter covering affiliate/commission programs, a must subscribe to for anyone trying to make money through advertising.

Iconocast - A free weekly e-zine that covers the Internets impact on traditional marketing. It contains data-rich market overviews designed to help readers understand key trends, plus The Jacobyte, an insider column.

IMC - A fabulous weekly newsletter with over 60,000 subscribers about web site promotion and how to run a business over the internet.

InternetAdvertising.org - A discussion list regarding online advertising.

I-Sales Help Desk/Web Review - Mutual website review newsletter. You post a short description of your site, it's goals, and questions you want answered, such as Does it take too long to load?. The message will then get published in the newsletter, and the replies will be published in the newsletter, so that others can learn from your mistakes. This discussion is also those needing help in starting a business online.

I-Sales - A discussion list for online businesses, online marketing and such. If your trying to sell anything over the internet this is a must read.

I-Search - A discussion list regarding various search engines, problems getting listed, and techniques to achieve a higher ranking.

Linkexchange Digest - Daily newsletter for webmasters about promotion, search engines and more! You don't have to be a LinkExchange member to subscribe to it.

Marketposition Newsletter - Probably the best newsletter dealing with improving search engine rankings.

MOTD - Marketing Tip of the Day.

Online Advertising - Discussion relating to buying selling advertising on the internet, banner networks, and more.

Poor Richard's Web site News - A Bi-Weekly newsletter covering that will keep you informed about the software, tips, and techniques you need in order to set up, maintain, and promote your low-cost Web site.

Pr2 Newsletter - A short, free mailing sent out irregularly dealing with website promotion. Most of the digest is just a short description and a link to a new feature article the actual website.

Search Secrets - Learn the latest search engine secrets, technology, tips and tricks.

SE Report - A great newsletter to subscribe to if you are trying to keep up to date with the major search engines.

Web Marketing Today - One of the best marketing newsletters around, over 60,000 subscribers. Comes out monthly, over 50,00 subscribers.