TridentList is an opt-in e-mail mailing list management service that makes running your own newsletter easy and affordable. TridentList will take care of handling subscribe & unsubscribe requests and deliver your e-mail newsletter to all subscribers. You get your own sub-domain name like MyList.optin.biz. E-mail and web-based subscribe/unsubscribe methods are supported. You can send plain text or HTML e-mails. Attachments are also supported. Prices start at $5 per month.
