Where do I start if I want to learn AJAX?
breily: http://www.w3schools.com/Ajax/Default.AspThis gives a pretty good introduction at what is actually going on.  The framework I've used (Prototype) abstracts away the details (like constructing the XMLHttpRequest) but its always good to know whats going on below the surface.If you know any python, this link - http://www.willarson.com/blog/?p=36 - is very helpful, it was how I got started.  The actual AJAX part of it is the same no matter which server side language you use.