In case you missed where I said this below, we did launch a message on the top-right of the search results page. The Search Engine Land article had a snapshot, but here's a direct link to what it looked like: http://www.flickr.com/photos/searchengineland/2717951328/
Over time, we saw that people didn't seem to notice/care about the message and corresponding link much, so it eventually migrated down to the bottom of the search results.
Over time, we saw that people didn't seem to notice/care about the message and corresponding link much, so it eventually migrated down to the bottom of the search results.