A story on CNet about companies building their businesses around map mashups by Elinor Mills: “The main reason for caution is the very thing that makes mashups so popular — they’re fairly easy to create, and it’s not that difficult for someone to duplicate the more successful ones. On top of that, it’s not clear yet how much money can be made with these sites. Are they the next big thing on the Web, or just a nifty niche for small companies and hobbyists?”