Trends & Reference Tables that every Web Developer should track

A web developer's education is never finished. Here is a list of trends & reference tables that, in my opinion, every web developer should track -

• HTTP Archive - Trends in web technology, interesting stats, repository of web performance information
• Browser Security Handbook - Key security properties of contemporary web browsers 
• HTML 5 Reference Table
• HTML 4/ XHTML Reference Table
• CSS 3 Reference Table
• CSS 2 Reference Table
• PPK's Browser Event Compatibility Tables - Desktop, Mobile
• HTML5 compatibility on mobile and tablet browsers

work in progress...