Last week's NYT Book Review contained an interesting essay on the history of (mostly) cigarette advertising in pocket paperbacks of the 1950s-early 80s. The results of the campaign were mixed. The authors hated them (and weren't cut in on the profits), they ended up in the hands of children when the affordable editions were picked for school reading lists and--it turns out--most Americans don't read anyway.
Though ugly and annoying, these ads were at least less insidious than the rash of product placement in novels that started a few years back. Is this still happening? or did bad publicity trump greed?