Recently, the HTML5 logo was published. As W3C states,
[i]t stands strong and true, resilient and universal as the markup you write. [...] And it certainly doesn't use tables for layout. The logo’s site presents you with many information about HTML5, the new possibilities and the new logo. Due to that, I decided to make use of HTML5. Right now, the blog is using the HTML5 semantics and CSS3.