moo.ajax is a small and awesome JavaScript library that will make embedding AJAX calls in your web applications very easy. I’ve been using this library for the past couple of weeks, and have found it to be great to work with. It’s based on the popular Prototype JS library, but is much smaller in size (3K) so is a perfect solution if the full Prototype library add too much overhead.  I’m always interested in these more economical Javascript solutions to problems because the fact is that you don’t always need all the full-blown functionality of larger libraries.  Give this a shot and tell us what you think.