There's no question that location is playing an increasingly great role in how people obtain and share information. We recently looked at where location fits into the SEO equation . Google has its own location-sharing service Google Latitude that has been somewhat overshadowed lately by services like FourSquare, Gowalla, and of course Twitter and Facebook, but Google recently said Latitude has 3 million active users, and this year it's grown 30% per month each month so far.