Armando Roggio from Practical Ecommerce did a review on MailChimp recently (after several months of use), which covered a bunch of our power features that internet retailers might be interested in, like our Inbox Inspector, A/B optimizer, RSS-to-email, and e-commerce plugins for Magento, ZenCart, and osCommerce plugins.
It’s a pretty thorough review, with insights and constructive criticism specifically tailored to internet retailers. Heck, we learned some stuff that you can do with MailChimp that we never even thought of (using RSS to send product inventory alerts).
Here’s the Practical Ecommerce review of MailChimp.
Two quick case studies from internet retailers who use MailChimp: