Bulk E-Mail Services
Constant Contact (www.constantcontact.com) is a commercial web based e-mail marketing system that works great for e-mail newsletters. They have professionally designed templates, online mailing list management services, and lots of tips on their web site.
Try the service with a 60 day free trial and see if it is for you! And small lists are free!
With a lot of pre-defined templates and some pretty powerful list management features, MailChimp makes sending great looking html emails out and managing email lists pretty easy.
The pricing is quite reasonable and they offer a free trial period as well.
Visit Mail Chimp's website at (where else?) www.mailchimp.com
With hundreds of professionally designed templates that you can customize for your needs, HIE helps you look good and communicate well. It will do personallized mail-merge to e-mail as well as the "one-off" message. Recommended!