Ajax Loading Animated Gif Generator

AJAX web applications typically use a processing or loading indicator when pulling data back from the server. We use them in S-Controls for Salesforce.com integrations and for our other web projects. Recently when performing a web search for a generic animated loading indicator (this search) I was amazed and surprised at a great tool that someone created:

ajaxload.info

The site gives you a lot of different styles of moving gifs and then lets you assign colors (or transparency) to the indicator and then you can download it for use in your site. Awesome little tool site!