http://googlesystem.blogspot.com/2008/01/bookmark-google-search-results.html

My Screencast to this:
http://www.youtube.com/watch?v=27twMRydEcw

German article:http://www.googlewatchblog.de/2008/01/30/note-this-auch-ohne-addon/

The not thing's been there a while (If your logged in) the new bit (Bookmarking) has been there since Bookmarks where added to Google notebook

"not" --> "note"