Google Suggest

I am sure you have already tried out Google's new beta tool, Google Suggest and if you were a programmer or someone who knows how computer stuff works, must have been wondering how on earth they bring back search results from the server that quick - its absolutely real time and there's almost no delay between a keydown and populating the list with possible search strings!

Searching over the web to find Google's technology behind GoogleSuggest, I came across this weblog, which explains how they are doing it - now I know they use XMLHttpRequest calls to their server and bringing back the responses at lightening speed (and of course, display them in a div using some usual DOM manipulation)

LiveSearch - Bitflux Blog Wiki

I must look into this, sounds very very promising!