Microsoft announces the ASP.NET Ajax 1.0 Release ASP.NET AJAX 1.0 delivers a rich client-side AJAX library that provides cross platform, cross browser support for a core JavaScript type-system, JSON-based network serialization stack, JavaScript component/control model, as well as common client JavaScript helper classes. in Public bookmarkswith .netajax
Using Page Methods in ASP.NET AJAX If you are looking to enhance your web application using AJAX to provide a more fluid user experience, but you don't know where to start, you might want to start here... in Public bookmarkswith .netajax