Back at the end of March 2004 Google announced a new labs product Personalized Web Search. Since then, they announced other products like My Search History. And now it is all coming together over at http://www.google.com/psearch.
Danny Sullivan has a big write up at his blog under the title Google Relaunches Personal Search - This Time, It Really Is Personal, recommended reading...
I tried a few searches and then ran into an error when searching on "search engine optimization." Error read; "The requested URL /find?q=search+engine+optimization&btnWeb=Search+Web&d=28&m=6&y=2005&hl=en&zx=ta5bfXAyksc was not found on this server."
Forum discussion currently only at Search Engine Watch Forums.