"Do Girls Like Rocks?"

I have completed my scientific study of whether or not girls like rocks.

Yahoo, Survey 1 (http://dating.personals.yahoo.com/profile?cmd=view&src=&adid=personals-1165424938-724754)
Match, Survey 2 (http://www.match.com/profile/showprofile.aspx?lid=&Handle=MeanGreenEagle&DO=2)
True, Survey 3 (http://www.true.com/profile/view_profile.htm?uid=16371375)
OKCupid, Survey 4 (http://www.okcupid.com/profile?u=GarryDenke)
MySpace, Survey 5 (http://myspace.com/garrydenke)

5 independent surveys involving thousands of women, girls like rocks.

Has anyone else investigated, "Do Girls Like Rocks?"