Bruce Findleton

Cartalog is a companion plugin to the Cart66 product, the Lite or Pro version, you’re choice. 
It provides a quick and easy way to add product listings, by category, to any page 
on your site. Using just a couple of shortcodes you can add product shots, links to detail pages, 
descriptions and a fully capable Cart66 “Add to Cart” button. For multiple product categories you 
can group items into category groups with nice headings and titles.
(Not to be confused with the iPad app of the same name by that fine Lucas Mendes Menge chap)

Cartalog

Cartalog allows you to add product listings quickly and easily to any page on your Cart66 enabled site.

johndaskovsky

<a href="http://howtononprofit.wordpress.com/classdex/" rel="nofollow ugc">Read the detailed documentation.</a>
<a href="https://wordpress.org/support/plugin/classdex" rel="ugc">Questions? Post in the forum.</a>
Written for yoga studios and other educational facilities that are focused on registration based classes. 
ClassDex is a robust system that brings together student contact information, class details, 
class registration, payment tracking, and basic accounting reports. 
Integration with Mailchimp automatically sends student emails to a mailing list. 
Integration with Cart66 enables easy online registration and payment for classes.

ClassDex

A class and customer management system for Wordpress.

Cartalog vs ClassDex