tedster - 6:37 am on Feb 19, 2011 (gmt 0)
I didn't realize Google Reader was being integrated into the SERPs either. I use Opera's client so I'd never see Google Reader even when I do logged in searches.
That gets me thinking. Signals from Google Reader may be a rarely discussed ranking factor, even for non-personalized results. There's got to be some good engagement data there for Google, don't you think?