I went to a conference and saw a presentation from someone at LeadPages. It was really good without being a giant commercial for LeadPages. At the end of the presentation, I asked the rep if he had 4,000 email lists if you are giving away all these ebooks and other incentives for people's email address. Then the lights came on.
You can have your list in Aweber (or whatever provider) and LeadPages delivers the incentive, and then adds them to your main list. This way you can have a ton of pages with different incentives, and still noly have one central list (or as many lists as you want). Originally I thought emailing my list after I gave away all these incentives was going to be a nightmare, but after some time with the rep I now see the advantage of LeadPages.
Pricing starts at $37. I chose the $67, and there is a $99 package (all per month) if you want to be a super user. Here is a quick video .