Website Perfomance Enhancing Performance of Pages Scott Hanselman's article on minification and other techniques Tools Fiddler JSON inspector Fiddler add-in neXpert Fiddler add-in YUI Compressor Shell extension for YUI Compressor Microsoft's minifier called from an MSBuild task YSlow HTML5 HTML5 - The Spec The living specification on the W3C site Page Structure Tags Article and Section tags - a discussion on their usage The Section tag on the html5doctor Canvas tag Canvas cheat sheet on the W3C site Canvas text polyfill for IE8 Techniques for HTML5 Modernizr HTML5 Boilerplate APIs Geolocation demo HTML5 and SharePoint Kyle Schaeffer V5 master page for SharePoint 2010 Control the download of those large JavaScrip files to SharePoint anonymous users