Unfortunately, as you say, no-one uses quite the exact same set of measurements, so it's hard to know where people who don't use sitemeter fall into the list I made. My guess is that Wallström's audience is quite big, as I imagine she gets readers from both the Eurosceptic blogs and the cafebabel set, as it were.
What's the blogging scene like in DE? Are there big beasts like escolar? Or is there a corporate slant like with the BBC and Guardian in the UK?
Finally, it seems to me that you've spent more time looking at the "eeeevil EU" sites than I have. My instinct from looking at No Pasaran and some of the others a bit is that these sites can be broken into two factions:
a) Indigenous Euroscepticism (largely British in the English blogs, naturally enough).
b) Sites dominated by an American discourse of the world. The comments are often filled with Americans and the posts often look at international issues from a US point of view, which one might say does not naturally lead to tolerance of the EU as an institution.
What do you think?
Your two categories will work for most sites, though the indigenous Eurosceptics from the UK have plenty to do with the US right-wing blogosphere. I would add that some of the Eurosceptic blogs (like Tim Worstall) are part of the Libertarian International rather than a particularly American discourse.
Here in Germany there is a site called David's Medienkritik that is more or less an extension of the American right-wing blogosphere.