A very interesting find by one of our regular readers Brandon Moreau, who before did two guestposts for us. It seems as if Google has, without telling anybody, turned off the possibility to turn off your search history personalization for those who are not logged in.
As you may know Google tracks you. Based on your web- and or search history (depending on the level of personalization you allow Google to go) Google serves you personalized results. This means that you will most probably see different results, or a different order of results, than your next door neighbor or even the colleague sitting next to you. Since late 2009 Google decided to turn this on for everybody, including those who are not logged in to any Google account (SEL reported on it here). Something every SEO has to keep in mind.
You have however always been able to turn this feature off. You can still do this when you are logged in, but when you are not logged in this possibility is now gone. (more…)