Re-designed website, seeking feedback

Suggestions:

1) If I were you, I’d put the “categories” menu to the top of your left sidebar, not to the bottom. The newsletter-signup should be somewhere below the recent posts, because it’s just not that interesting (no offence ;)).

2) Viewing an archive (months or categories), you can see, that there is very little space between the post-meta (date) and the content. There should be at least 5px margin.

3) If you hover something in the top menu, there is a 1px-whitespace between the menu-button and the line below (maybe due to a padding?). It would be nicer to have the blue boxes adjacent to the line.

But these are just minor issues, you did a nice job overall :).