Your service is absolutely hands down the most cost effective marketing tool I have ever seen - and your service just gets better and better!
Your interest in user feedback, as well as responsiveness, goes a long way in my opinion of the site.
I just wanted to take the time to say thank you for your service. We don't have a large subscription base for our newsletter, but it is important to get it out to our clients. Your service is stellar, and that you let us do it for free is even more impressive. I am very impressed with all the features you have to offer. It's a first class servi ...