I found a lot of blogs and articles [1] that are asking if we should use the Ajax.NET library or the Atlas Framework. My opinion is that it is not easy to compare these two AJAX ideas. Ajax.NET was only a idea to have a data access for JavaScript with nearly the same objects as method argument or results like we are using on the server-side. There are some other companies with nice WebControls that support AJAX functions. What we need is both of them, some WebControls (like auto-complete or livesearch, a grid that will get data while paging through,...) and the possibility to read data with a minimum of code and JavaScript knowledge. The Atlas Framework will be a complete framework where you will get additional controls.