JISCmail - Host of free electronic discussion lists for the UK higher education and research community. It includes a FAQ and user guides on the service. - http://www.jiscmail.ac.uk/
Email Marketing Solutions UK - Offers mailing list management, email delivery and response tracking services. - http://www.emailtools.co.uk/
B3ta - Features weblogs, wacky animations and a weekly newsletter with choice links from the net. - http://www.b3ta.com/
Domeus: UK - Provides free email discussion groups, categorised in a directory structure and with searchable archives. Allows the creation and maintenance of discussion lists and web forums. - http://www.domeus.co.uk/
Autoresponder - Provides automated email autoresponses to email enquiries, allows the creation of mailing lists with ad tracking and mail statistics. - http://www.auto-responders.co.uk
Popbitch - Sarcastic newsletter covering showbusiness, celebrities and the world of pop. Written by anonymous industry insiders. - http://www.popbitch.com
Need To Know - A high-tech sarcastic for the UK, written by members of the UK internet cognoscenti. Available by email or via the web. - http://www.ntk.net/