The AWeber website is super popular according to their Alexa traffic rank and their sheer number of customers, which is currently over 100.000.

You can earn a neat 30% recurring revenue share when promoting AWeber. Currently, they charge $19/mo, $49/quarterly or $194/annually.

Entice signups with a 30-day free trial.

The features of their email tools include email newsletters, drag and drop editor with over 700 responsive email templates, email automation, split testing, and much more.

I like that they have made it possible to make affiliate tracking links to useful content like their blog, webinars, and videos.

I believe you can also make a link to any page on their website and just apply your tracking parameter at the end of the link which is great.