Group Mail - Email list and distribution management. ListBot - From LinkExchange ListServe - Provides email list services and discussion services. (****) Majordomo - Mailing list management software that manages email list and email transport system. (****) ONElist - Join a list or start your own. SparkList - Managed email list hosting and management solutions for permission based, opt-in newsletters, announcement lists and discussion lists. (****)
Topica - Start an email newsletter and manage your list here. | 
