WolframAlpha
Although especially strong with the sciences, WolframAlpha. pulls up statistics and brief facts about almost anything – people, culture, sports, education, etc. Want to know how popular your name is? Type it and find out its rank. How many calories do you burn running? Type in the particulars and find out. Enter any math formula, place, plant, animal or chemical. Compare multiple stocks, or just about anything by separating your search terms with a comma.