This article explains the procedures needed to implement Ajax.net in your web applications. 

NOTE: As of November 2006 this information is outdated as the offical release of ASP.NET AJAX was completed.  If you would like to see a tutorial on using the new AJAX tools send me and e-mail!

With the new SiteMap functionality wouldn't it be nice for all of your pages that are part of a master page to have a title that references their position in the site map and the values you have provided for the page titles?

This posting explains the use of the BrowserCaps section of the web.config and how you can fix incompatability errors with ASP.NET 1.1 and FireFox with a simple addition to the web.config file