While testing Google Spreadsheet, I discovered this amazing feature: googlelookup. What id does is very simple, it can retrieve information form the web and return it into the cell. For example I can write a formula that looks like this =GoogleLookup("John lennon", "date of birth") and it will return Wednesday October 9 1940. You can also try =GoogleLookup("Roger Clemens";"earned run average") and it will return the info !
More on this amazing feature can be found here