Ok, so I’ve decided. I love AJAX. No, not the cleaner but rather the new web technology that seems to be engulfing the internet and combines two older technologies to bring a web user an experience similar to a desktop application. AJAX uses JavaScript and XML in conjunction with one another and queries a remote data source, thereby being able to change the content of a page without leaving said page and without using frames. If you ask me, that’s pretty sweet stuff, as long as it’s used right.

AJAX is intended to add to the user experience, but from a Search Marketing standpoint, we must keep in mind that not all visitors will be able to experience AJAX and those visitors are just as important as other visitors. An alternate experience is recommended not only for search engine friendliness, but for usability as well.

Here is a good list of sites using AJAX.