From the looks of a few SERPs I monitor, blogs have been cranked up. They had improved significantly but now it's as if someone at Google decided blogs should dominate once again. And, in one particular set of results I've monitored for years, the same blog post has three top 10 positions on the three different sites it was published on. How useful. Have dupe content filters been turned off or something? I had suspected something like that and to me this points in that direction.