Which is what Microsoft did today when it purchased Multimap for a reported $50 million. “The addition of Multimap enhances Microsoft’s position as a leading provider of mapping and location platform services,” Sharon Baylay, general manager of Microsoft’s Online Services Group, said in a statement. “This acquisition will play a significant role in the future growth of our search business and presents a huge opportunity to expand our platform business beyond the U.K. and globally.”

Leading provider of mapping and location platform services? That’s a bit of a stretch. According to Nielsen Online, Microsoft’s Windows Live Maps service had 7.1 million unique users worldwide during October. By comparison, Google Maps had 71.5 million unique users, its Earth service 22.7 million. Clearly, Microsoft is in a losing battle against Google in the mapping space, though this acquisition will give it a powerful weapon with which to fight.