May 17th, 2009
Googlebot has, in the past, mistakenly moved valuable pages into the Google supplemental index or has passed PageRank to pages that do not need to rank i.e login, register, subscribe, e.t.c. Therefore it is necessary to guide these bots if you want to avoid such problems. But how can you guide them? Bot Herding: The Ultimate Tool for PageRank Sculpting.