Piwik : Piwik is the leading open source web analytics platform that gives you valuable insights on your website's visitors, your marketing campaigns and much...
Maily Herald : Maily Herald is a Ruby on Rails engine that helps you send and manage your mailings.
Think of Maily as a self-hosted Mailchimp® you can easily integra...
Cachet : Beautiful & simple service statuses. The open source status page system, for everyone.