I though that it would be good to share my point of view with you. So, here I go.
Title: Server Polling - Reverse Ajax)
Server polling, in my humble opinion, is a great feature of AJAX. There is no need to refresh the whole page to obtain the required information. With AJAX, it is possible to:
- update the forms with information as the user moves through the form (e.g. country - state - city)
- get the feedback about a long server-side or transport process (e.g. progress bar showing the percentage of the uploading file)
- fake the push of the updated data from the server (think stock prices, weather, traffic info)
I am sure that I will come across more coolness when I start writing more and more Ajax code!