Ruby on Rails: Talk - join
The official mailing list for the Ruby on Rails project. Where Rails users come to seek help, announce projects, and discuss all kind of matters surrounding the framework and the community.
High activity, 14809 members

Ruby on Rails - join
An adhoc and unofficial group for Ruby on Rails (RoR) fans.
Low activity, 2808 members

Liquid Templates - join
Developer, user, integration and design discussion sourrounding Liquid a non evaling and safe but powerful template engine for super customizable modern web application which powers applications such as Shopify, Mephisto and Stikipad
Low activity, 244 members