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Unwittingly, Paul Rademacher made history by fooling around in his free time. In an act reminiscent of early Reese's candy commercials, Paul married the data from Craigslist.com's real estate listings with Google Maps to create an interactive housing viewer. What makes this story real interesting is that this little application has nothing to do with Paul’s real job -- a software engineer for animation company DreamWorks. He just whipped this little application up as a hobby.