Somebody uses those?
Like most Google users, I use search and maps - and that's it.
And I have a funny feeling I shouldn't be using maps.
I do deny Google cookies - but then there is that pesky fixed-IP address.
I'm not paranoid enough to use proxy servers, though.
I think we are likely to be more skeptical here than the general public, though. After all - we know how sausage is made.
Note that Schmidt didn't say that Google was planning on using information from social networking sites - he said that they plan on using information that they have about user's social connections.