This is my favorite email list management that helps me with the follow up online like a virtual secretary that works for me 24/7 and not requesting an increase. Everyday it does a lot of jobs for me online and an increasing work as the subscribers increases. Truly I can say it's an email marketing services that does not fail me for years since year 2000.
What's more it's also a business in itself, so you do your online marketing via this automated system and yet it's delivered personalized since you get to greet all your customers by name and whatever details you need to included with the personalization, you define it. Truly a perfect email marketing services for me.
It's not only an autoresponder as someone have said, it's also a banner campaigner, reminder, adtracker, affiliate manager, contacts/address book, advertising coop, guaranteed visitor campaigner, and also not to say the least it's also a 24/7 money maker. Truly the best and perfect email marketing services for me that even aweber, getresponse and royalresponder have paid just to have it advertised their products/services.