Directory of Scholarly Professional E-Conferences
Screens and evaluates discussion lists, newsgroups and other resources on topics for scholars and professionals. Annotated and organized.

Gov-L mailing list for reporters
The GOV-L discussion list "allows reporters to find sources, share ideas, spot trends and generally discuss ways of covering government and politics." Moderated by Rachel Stassen-Berger of the St. Paul Pioneer Press, and Reid Magney of the La Crosse Tribune.

How to search listserve archives
A guide to searching lists kept by listserv, a popular software for managing lists.

How to search Majordomo archives
Searching lists run on majordomo, another list-management tool.

Liszt
Liszt doesn't archive the messages, but it does keep a great directory of 90,000 mailing lists, with instructions on how to subscribe. Search for "jazz" and you'll find several jazz groups. Or browse through a directory by subject.

Mailing List Commands
Intermediate list commands, such as, how to search a list's archives!

Mailing List Etiquette FAQ
Mailing list etiquette. How much better mailing lists would be if everyone would read this one.

Newhouse Net Lists
An excellent list of mailing lists and newsletters for journalists of all kinds. By Barbara Croll Fought of Syracuse University.

Other Mailing List Commands
Intermediate Lists 201. How to control what messages you get, how to get a list of everyone on the list.

Publicly Accessible Mailing Lists
A subject directory of mailing lists, from abuse to zodiac.

Reference.com Search
Archives many mailing list messages, and lists other lists.

Subscribing, Unsubscribing, Posting
Intro to Lists 102.

Tile.Net
A complete list, sort of. It lists all mailing lists that use the listserv software. Many, however, now use majordomo or listproc. But you may find something here that Liszt has missed. Also does a good job of profiling Usenet newsgroups.

Topica
A searchable directory of mailing lists.

What Is A Mailing List?
Intro to Lists 101.