Steve Rubel reported seeing an excess of what he calls “Blog Thumbnails” in the Google search results. In short, when you do certain searches, Google may show little thumbnail alongside the first set of results. For Steve, this has been happening for “blogger’s name and some other related keywords.” Personally, I have been seeing these types of thumbnails for a while, but they only have come up for me for very specific searches, so I assumed it was a smaller bug then it really was.
Google’s Matt Cutts has commented claiming this is some sort of bug and he has reported it to the right people. Matt said he hopes to “get it straightened out in short order.”
You can currently see the thumbnails for searches for Gigaom papers and Luis Suarez and many others. The ones I have been seeing are related to very specific site command searches for flavors of site:seroundtable.com buzz, which returns this icon: