Don't know whether anyone else has seen this, but it's the help for google purchases http://purchases.google.com/support

has this been roled out now? i still can't see anything in the UK

this has information on reviewing sellers. therefore meaning that google base will have some kind of social ranking of sellers in the near future

actually buygoogle may have some more insight. I have digested the some of the latest article

http://www.buygoogle.com/

this information i brought up a few days ago has just been put on insidegoogle

http://google.blognewschannel.com/index.php/archives/2006/03/07/google-base-reputation-system/