Do you use firefox or internet explorer?
In firefox under tools it has an option for clear private data and that gets rid off it all for you including google stuff, but I dont know about IE I'm afraid.
Oh, I wondered this a while ago when they all popped up and there were a load of male actors names from a "post a pic of a hot guy" thread ages ago. Thought DH would go and that it might be a bit
<<<waits patiently for someone who knows>>>>>