How to push new HTML data from the server to the browser without refreshing the page

Question

I have seen many websites (facebook or stack overflow for instance) that will update certain features as new data is generated (new answer on a post for example).

L

Answer 1

Well,

If you are in the PHP and Open Source world, you can consider Node.Js, Socket.IO or NowJs

I am in the ASP.Net wonderworld and I love SignalR.