SitePoint : SitePoint provides cutting-edge content for web professionals — developers, designers, programmers, freelancers and site owners.
Explorer Exposed! : These CSS bugs are all found only in Internet Explorer, versions 5 and higher. To see the demos properly, they must be viewed in IE, of course.
OWASP : The Open Web Application Security Project (OWASP) is a worldwide not-for-profit charitable organization focused on improving the security of software.
Pattern Tap : Organized Web Design Collection of User Interfaces for Inspiration and Ideas. The CSS Gallery Alternative
Introduction to WAI ARIA : This article is for those who are new to ARIA. You need an understanding of HTML and the potential difficulties that people with disabilities can face...