This brings to mind the question of where intellectual property protection ends, and whether such protections exist once something has been put "out there." Did you hear the one about the American woman whose family photo ended up, unbeknownst to (and unauthorized by) them, as a supermarket window display in Prague. The woman, Danielle Smith, of Missouri, posted the photo on a blog (uh oh) and attached it to holiday e-mails. Ms Smith explains that it that had her friend not happened upon the ad whilst living in the Czech Republic capital, she would have had no idea that her family's image was being used.
They say publish or perish. I guess these days, it's possible to simultaneously do both.