Maybe I'm missing something: I just see a bunch of people's profiles in a search results listing. Do I need to actually have a Facebook account to see what's relevant?
Yes you need to log in to be able to see anything else than profiles. I could only see profile before I realized I wasn't logged in. Once logged in though, the search for "Google+" was now showing anything related to Google+, it was almost only status like "Go to google maps, Type directions from X to Y, Look at step X, Laugh!" that people spammed.