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!
{jb_info}Many of our site users are using and loving Constant Contact. Visit their site for more information.{/jb_info}