While catching up on my reading over at Microformats.org, I stumbled across AHAH. In a nutshell: it’s AJAX using static XHMTL fragments instead of having to process unformatted XML. Think of it as a dynamic client-side include system. Also known as JAH, this technique was being used long before the use of the combination of technologies behind AJAX were encapsulated in a four letter acronym. It’s nice to have something to call it now without feeling guilty for not having to process XML along the way.