title: a Facebook "like" or Twitter "follow" system - in Rails 3
body: <p>Can anyone point me in the right direction to learn about how I could implement a system similar to facebook's "like" or Twitter's "Follow/Unfollow" system that I could create in Rails?</p>
  
  <p>From what I understand I would need to use Unobtrusive Javascript.</p>
  
  <p>I have a Thing model(has_many :likes) and a Like model (belongs_to :thing)</p>
  
  <p>Any pointers?</p>