acts_as_starable is a gem that allows a model to act as a starer of other models or one that can be starred.

Add the ability to give star ratings to various models.

Rails StatusBar with ActiveRecord integration, permits dynamic custom output from your model

acts_as_statused was developed by: markbates

Rails injectable Redis-backed activity stream system. This is an alpha release of code that I just wrote and put into production on 3/11/12. Send feedback and post bugs to the Github page, but use at your own risk!

With ActsAsSubscription, you can hook your model into several subscription services, such as CheddarGetter.

acts_as_tableless

Rails 3 plugin that is based on acts_as_taggable_on_steroids by jviney that is based on acts_as_taggable by DHH.

With ActsAsTaggableHstore, you can tag a single model that uses postgres hstore type

A rails engine that lets you mount a job search engine

Description of ActsAsTemplate.

In the event that you do not want to clutter your production databases with what could be temporary data you can use this plugin to temporarily store and later retreive data with your database.

It adds support for Delayed Job.

Multiple tokens for Rails application.

ActsAsTreeDiagram extends ActsAsTree to add simple function for draw tree diagram with html.

Tumblr Essentials

Versioning of ar tables

Create, Store, and Embed videos from different Oembed host using their url

Allows models to issue warnings if a task goes wrong

This gem allows you to use the acts_as_wild_searchable tag to your models and make methods for each attribute to search using wild cards and like