title: How to create a live feed using Rails
body: <p>Im trying create a live feed block which identifies the latest data added to a forum discussion and automatically updates a block on another page with the latest posts on that forum. 
  Im using Ruby on Rails and I would really appreciate any help on this.</p>
  
  <p>(If my question is not clear I hope I can be more specific with one of these examples). I'm trying to build something like the rolling twitter updates that blogs sites have nowadays or wouldn't mind something like the twitter home page which automatically updates itself. I assume the twitter home page musst using some sort of polling feature.</p>
  
  <p>Any help on how to go about building one of these would be awesome</p>