How Foursquare Will Become the Google of Local

techi.com — On the web, small, seemingly insignificant things can have incredibly wide-reaching effects. A small ad placed next to a search result might be the start of a massive new enterprise. A service that lets you share your status, photos and links with others might become the largest social network on earth. Small changes. Big results. Jul 9, 2010 View in Crawl 4