Have been looking at a number of different Mailing list providers. They each have slightly different benefits, (like click through reporting to see who has opened your email and followed what links) and costs (some are free for a small number of contacts, or features)
http://www.mailchimp.com/pricing/p1/
Free for ever for up to 500 subscribers, includes complete click thru reporting
but if you go over 500 it costs ( pre pay PAYG for 3cents/email if you do less then a monthly mailings, or a monthly unlimited plan for $30/month, or more depending on size of your list)
http://www.yourmailinglistprovider.com/
is free up to 1,000 subscribers. (max 1000 emails/month)
But if you want to easily upload a mailing list or see who opened, or be able to see who clicked on what link and do a follow up email, you pay, but only a few pounds a month, with a sliding scale according to how many emails you send (plus you get unlimited contacts )
