How much is an email newsletter worth? Letter.ly lets you build an email newsletter and decide if you want to charge readers for the newsletter subscription.
Here’s more about the service: ” Payments through amazon. Publish letters as often as you want by emailing your secret email address. Subscribers can reply to your letters to privately comment back to you. If you want to give away subscriptions to friends/supporters, simply enter the email addresses that should get free copies in your dashboard. You can add your Facebook or Twitter accounts; we will publish the subject of your emails with a link to subscribe. When you want to get paid, simply click cash out. You have total control over your subscribers… So you can unsubscribe people if you want.”