Hieros Gamos
Hieros Gamos guide to law related discussion groups is a nicely organized and comprehensive site. There are several ways to starts your search from this site such as index by topic, keyword search, or categories.
http://www.hg.org/listservs.html
LawGuru Mailing List Manager
listTool is a mailing list manager. It allows subscribing, unsubscribing and sending commands to over 500+ mailing lists (in categories such as law, art, music, computers, news, business, humor and more).
http://www.lawguru.com/subscribe/listtool.html
LLRX.com
LLRX.com is a unique, free Web journal dedicated to providing the legal community with the most up-to-date information on a wide range of Internet legal research and technology-related issues. LLRX.com works with nationally renowned law librarians, attorneys, information technology specialists and legal technology consultants to produce the site's well-documented, up-to-the-minute articles, departments, columns and feature stories. LLRX.com publishes: Daily, Weekly, each Monday, Bi-weekly, on the 1st and 15th.
http://www.llrx.com
TechnoLawyer Community
The TechnoLawyer Community is a free online community. Week after week, members of the TechnoLawyer Community share their experiences and knowledge with fellow legal professionals, often developing valuable business relationships in the process. Their TechnoRelease Tuesday is a TechnoLawyer Community program that enables technology vendors to distribute news and information to technology decision-makers in the legal community. They also list a large collection of product categories to search from.
http://www.technolawyer.com/