Let me say right out of the gate, that I would still recommend Aweber to business owners. It’s a great solution and is well regarded in the industry, particularly for their rigour of asking for the double opt-in to minimize spammers and assure permission (this is where a subscriber has to confirm via email that they do in fact want to receive information). It’s reasonably priced, and has many of the basic features needed to do good email marketing. MailChimp is comparable too – however, despite my love for their awesome branding, it lacks features that even Aweber has down. It’s great for a basic business owner.
It was pretty easy to transition over to Aweber. Basically you need to let Aweber know that you are switching from MailChimp, export your contacts to a CSV file and then cut and paste the contacts in. The only pain was recreating all of my forms and autoresponders…especially the popup. I would recommend just signing up for Aweber from the start and not having to deal with it later.
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.