What I was trying to get across (and perhaps I didn’t make myself clear here, my fault), is that there are also other equally excellent services. I mentioned MailChimp as someone mentioned they’d like a mail list manager but couldn’t afford AW. MC is free for the first 1000 subscribers, and I think for a large proportion of entrepreneurs, that is enough to get started (more than enough, probably).
Even if you've imported an existing list of contacts, you'll still want an easy way for new fans to join your email list. AWeber's sign up forms provide the perfect solution. Create a simple sign up form for your website, and if you don't have a site, we'll host it for you. Grab the link to your AWeber form and share it on Facebook, Twitter, LinkedIn, or wherever your audience is.