Every time someone brings up the term “social advertising” the anal retentive word smith in me starts picking it apart. Social advertising doesn’t accurately describe banners or images that appear based on what the site knows about you. An ad for Seth Godin’s latest book showing up on my Amazon.com login screen because the site knows I dig marketing stuff is contextual or what I would term false-intuitive advertising. (False because no matter how much database you have on my brain, you don’t have my brain which at that moment might be on a Terry Pratchett kick.)