Ajax technology has improved user experience on the whole and numerous websites on the internet have been implementing this technology as it offers several advantages to the user. The good thing about Ajax is that improves user interactivity and experience. Let's take the case of entering comment by a user. In normal scenario it takes time for the comment to load and it won't be visible until you refresh the website but in case you implement Ajax the comment will be visible without having to refresh the browser. If you are looking forward to accomplish this for your users then check out the excerpt from Ajax Hacks which has been penned down by Bruce W. Perry. It has been explained in a lucid manner and you will definitely find this information useful for implementing it on your website.