Ajax (sometimes called Asynchronous JavaScript and XML) is a way of programming for the Web that gets rid of the waiting period on websites. Data, content, and design are merged together into a seamless whole. When your customer clicks on something on an Ajax driven application, there is very little lag time. The page simply displays what they're asking for. If you don't believe me, try out Google Maps for a few seconds. Scroll around and watch as the map updates almost before your eyes. There is very little lag and you don't have to wait for pages to refresh or reload.
Here are some example of Ajax Effects: 810 + Ajax/Javascript/Dhtml examples and demos
USWebPro can add any of these effects to your current website.
Rate: $40/hour. Budget 0.5-2 hours for most ajax effects.