CommunityEngine is a free, open-source social network platform for Ruby on Rails applications. Drop it into your new or existing application, and you’ll instantly have all the features of a basic community site.

Calagator is an open source community calendaring platform

recaptcha support for decko

An extension for Rack::Attack that supports responding to throttled requests with Recaptcha tags

Permit to create unlimited of contact forms for Camaleon CMS

Spree extension to send product recommendations to friends

Station provides a documentation platform ready to use with your custom documentation.

Structure to implement the forms using ajax and management in the backend

Appoxy Sessions gem description...

So people can, um, contact you.

Shared user access gem for public front ends

Builds the form to get contacts on your site using reCaptcha and the Rails resources for managing your contacts.

Part of MokshaCms, providing core functionality, including internationalization

#Ruby on #Rails CMS with #Crowdsourcing support changes: http://bit.ly/home-page-0-0-6

Customer Support and Knowledge Base

models, specs of models, and assets for microsites_cluster

KMS extension allowing to have feedback/callback/contact forms on your website

Core engine for the Publify blogging system, formerly known as Typo.

Raddar is a Rails Engine that helps you to quickly start building apps that behave like communities. This gem powers up your app with a complete user management suite and administrative tools.

Rapid Application Development Kit for Rad Framework