"AJAX was, and remains, the hottest buzzword in web development. This will continue to hold true for the foreseeable future, and for good reason; sites which use it are pretty slick. Yet the acronym, which stands for Asynchronous JavaScript and XML, continues to be misused and misplaced. Have you made one of these all-too-common mistakes?
1) I Need an AJAX Guru to Code an AJAX Website
...
2) AJAX is New
...
3) AJAX Powered Websites are Fast
...
4) I need to add AJAX to my website to keep up with the times
...
5) AJAX Will Replace Flash
While it’s true that Flash was once the buzzword that AJAX now is in web development circles, the idea that AJAX will replace completely flash is unfounded. While entirely flash based designs are becoming increasingly uncommon, flash still serves a purpose for many multimedia and graphical interface elements.
While AJAX has given many great possibilities in web development, consider the technology carefully before implementing it on your own site. Don’t break the likability, accessibility or navigation (back/forward buttons) of a site just to use AJAX. Use it where it is the most efficient way to make something work."