http://www.google.com/search?hl=en&q=http Yahoo is 6th. What the heck does Yahoo have to do with this keyword? lol they ranked good in something that doesn't relate to them really.
how many people will really search for http anyway? don't get your knickers in a twist about pointless things.
well in IE it searches for it, whereas Firefox it doesn't. IDK, boredom and junk may play a role in it.