Web development news for the 6th week of 2012:
4 New HTTP Status Codes On The Way? (428, 429, 431 and 511), Getting Started with IndexedDB, A Simple CSS 'Ribbon' Menu, …
Learn more about Cross-Origin Resource Sharing for XHR in IE10 by the IEBlog. This is a good article showing how to share resources accross domains.
I'm not sure if you've been following it, but there has been a movement in the last couple weeks by various developers raging against browser prefixed CSS rules. I think the strongest argument against them is that it promotes browser venders to not participate in process of improving the CSS standard. Take a look around the web to hear both sides of the argument.