Hi, I have been an affiliate for a few years now and I have heard of many people using Aweber for their lists. However, I started out using Aweber for a very short time and then closed my account after being contacted by Aweber customer services.

At the time I was promoting a free affiliate marketing ebook that I had written as a giveaway to build my list. Aweber contacted me and told me that they do not allow anything "affiliate" related. I thought this was quite odd as Aweber use affiliates to promote their business!

Anyway, I closed my account and moved onto Get Response. I contacted Get Response and asked them if they would have any issues with me promoting affiliate related material and they said that they had no problem at all with it.

So my recommendation would be Get Response, they also have a useful landing page creator if you need it.