My best recommendation for an autoresponder service is Aweber.
An autoresponder is an email service that allows you to automatically respond to emails you receive from your audience. They are commonly used to queue up a series of emails for delivery on specified dates or intervals. Because they can be "pre-programmed" like this, autoresponders are great tools for delivery of marketing campaigns and for "keeping in touch" with your subscriber list.
While the Aweber autoresponder system is best known for its autoresponder capabilities, it can also serve many of the purposes of an Email Management/Publishing system like Constant Contact, too. It collects email addresses, helps users to easily subscribe/unsubscribe, etc.
Aweber offers a 30 day Free Trial that is well worth it. Their full service costs only $19.95/month and includes unlimited emails to your list, too. That's very cost-effective - probably less than 1 sale per month from your emailings.
The Aweber autoresponder service is used by almost every automated publishing newsletter that I receive. Its dominance of the industry clearly demonstrates the value they provide. (I use Aweber myself and am an affiliate, too.)
Setting up an on-going series of automated follow-up emails is one of the easiest ways to make more money from your customers.
Online marketing expert, Jonathan Mizel, calls the Aweber system: "A systematic process that sucks the maximum amount of cash out of each prospect." Ouch!
I recommend that you check out Aweber autoresponders for your business, too.
SPECIAL OFFER: For a limited time, new Aweber customers will get access to an exclusive Autresponse Seminar hosted by online marketing expert, Jonathan Mizel. This hour long video shares the insider secrets of email marketing experts to help you maximize the value of an Aweber subscription. This exclusive training video is waiting for you in the customer account dashboard. (Just sign up for the 30 day trial and you can check it out for FR-EE!)
Amazingly, Aweber is so good that it doesn't seem to have much competition. If you are a fan of a competing autoresponder service, please post in the Comments to share your thoughts?