Google's custom 404 widget

I've just found out that Google has released a custom 404 widget. The idea is to improve the experience of 404 pages and instead of telling the user that he or she is lost, provide him with something he could really use.

Internet Explorer 8 will support AJAX page navigation

The IE team has recently announced that they have made a few AJAX improvements in the newest version of Internet Explorer. One of such improvements is support for updating the navigation log through AJAX. So when your application uses intensively AJAX to enhance the User Experience, you can still leverage the native browser navigation mechanism by updating the navigation log information.