All about HTML:

5

We like/appreciate/want markup that is fundamentally more semantic, and that’s what HTML5 is. A more flexible document tree is also a good thing.

But some of the semantics are confusing. How do we markup a blog sidebar that contains a list of archival links? (Another tip of the hat for rel) Is it an aside or a section? Is a list of navigation links held in a long footer actually part of a footer? Or is it another section?

Is section too vague (and therefore useful as a catch all)?