londrum - 8:33 pm on Nov 10, 2011 (gmt 0)
there was a conversation about this ages ago to do with baidu, i think, and one of the things that came out of it was that noindex does not do what we think it does.
most search engines will remove the pages from their index if you noindex them, so we have come to believe that's what it does. but technically, it isn't.
it just tells them that they can't crawl it. anything already in their index can stay there. and if they can get the info through a third-party, then that's okay too.
if a third party links to your page, then they can grab the URL and title, or whatever, from that, and there's nothing you can do about it.