Did you know that you can send your prospects to a web page that is simply an opt in page. All you need is a domain name (you can purchase from Godaddy for $10. Then you can create your own personalized web form at Aweber-grab the code and mask it with your Godaddy domain.
This is exactly what I've done with http://www.200leadspermonth.com did I mention that the hosting is Free? so you can put your web page at the end of all your articles or Blogs for your readers to click and opt in for your free newsletter etc.
Pretty cool and essentially Free. For more information check out Aweber Videos