As an affiliate you can integrate with GetResponse and SendLane through the JVZoo system.
To integrate with either of the above, go to the Affiliate tab, "Approved Products" and click on the "Add Extras" button beside the product you want to add your autoresponder list. You must have a GetResponse or SendLane account before setting this up.
Affiliates may also integrate with Aweber by using JVZIPN. You can learn more about the integration with Aweber and the use of Aweber Pro Tools in the following article.
Sellers have other options, because they are doing the programming for their own sites, but affiliates are limited at this time.