Using ASP.NET AJAX with ASP.NET MVC.
I thought you couldn’t use them both, given that a ScriptManager control is server side and implementing it would break the design pattern of MVC Apps…turns out the raw Javascript that is used behind the Microsoft Ajax toolkit is available as a standalone download, and by referencing this on the client side View pages one can actually use all the features of Ajax toolkit without breaking the MVC model as you no longer need to have the server side ScriptManager control present.