[Ingolmo]

You cannot use ONLY these "meant to be" semantic tags (<article>, <header>, ...) to describe semantically all the content you have. Divs is then the only way to go I know.

[brianfryer]

I'll quote ricardobeat's comment above (http://news.ycombinator.com/item?id=4284877):

"Not every, but 95% do. For the rest, there are other pssibilities and tools to make sense of it (microdata, ARIA attributes, etc). Just ignoring semantics altogether won't do any better."