AJAX

Infoworld reviews 6 of the 'top' open source AJAX libraries. What I picked up from this article is that although we are still in the early stages of AJAX, there is enormous potential, and some great toolkits that will help you get started using AJAX on your webpages. For my first foray into AJAX, I didn't use any of the abovementioned libraries. I used scriptaculous to create a drag and drop sortable list that is automatically updated in the database.

If you are using ajax on any web pages, you will want to give some indication to the user that a request is being processed. Animated gifs like those found here are great for this.