Do a search in Google and at the top right of the screen click the link "web history" and see what it says.

If it says "Disable customizations...." then what you are seeing are the "emperors clothes" i.e. the results Google "thinks" you want to see!

If it says "Enable customizations..." then you are probably seeing as true a result as you can see.

Try turning it on and off and do several searches and click some sites you will soon see how different the results are and often G turns this on by default!

Watch out when you sign in and out of Gmail - Big Grother is definitely watching more than you would expect!

Final word to the wise... For goodness sake don't use Chrome if you are doing BH as you will surely be giving more away than you would ever want G to know...