Guides/Tutorials on unobtrusive javascript/ajax

Google hasn't yielded satisfactory result开发者_Python百科s. I'd appreciate it if people can provide some suggestions. Thanks.

Decent but basic: http://www.lostechies.com/blogs/johnteague/archive/2008/11/03/unobtrusive-javascript-part-2-separating-content-style-and-behavior.aspx

More in-depth but MVC specific: http://blogs.msdn.com/b/simonince/archive/2010/04/20/jquery-mvc-progressive-enhancement.aspx

The term "unobtrusive javascript" appears in one book named "jQuery in Action", I am not sure if that where it originates from, but it is worth reading for sure.

For my personal understanding, modern Javascript libraries/frameworks such like jQuery move the trend twoard this sort of "unobtrusive javascript". So I would say it might be something you'd like to invest on.