Alex GetResponse is a good service too. They have a smaller customer base than MailChimp or Aweber but they are definitely on the right track. You should consider your own options that will help you decide. For example, pricing, growth, support, reliability, deliverability, spam filters, etc. Make a list of these factors to compare on your own, you will also find such analysis around the web but those analysis could be biased towards one of the service. So you better do it on your own.
In this video, I’ll explain why email lists are essential components of your business, and share some personal stories about my experience with email. I will also teach you how to setup your email service provider and show you the basics on adding a signup form to your website. Lastly, I share a demo and setup instructions for ConvertKit, my chosen email service provider, but the lessons I teach you will apply to any platform. [Full Disclosure: I'm a compensated advisor and an affiliate for ConvertKit.]
Before you can send AWesome emails with AWeber, you'll need someone to send it to. The easiest way to begin building your list is to import contacts that have opted-in to your email list, or gave you permission to send them emails. These could be subscribers you've emailed from another provider, or a list of contacts that you've built through your business.