Easy activity tracking for your ActiveRecord models. Provides Activity model with details about actions performed by your users, like adding comments, responding etc.

This gem creates a scope for unread objects and adds methods to mark objects as read

A rails plugin that allows you to create extensible log of activity

Subscribe to and build activity feeds for your models, for example followings and friendships

Easily build timelines, much like GitHub's news feed

Help you implement feeds / timeline / public activity in rails application.

Streama is a simple activity stream gem for use with the Mongoid ODM framework