Some competitors solve the same problem with the same technology but focus on a different customer. For example, Zum provides schoolchildren with rides to school, solving a transportation problem for kids and parents. Zum solves a slightly different problem too: safety. Safety is the primary concern for parents when it comes to kids riding back from school. However, it’s ultimately grounded in the same tech as Uber.

Now the ad servers don’t create this table themselves, they license it from another ‎company like MaxMind or DigitalEnvoy, whose primary business is geolocation ‎data.   This is no enviable task; IP addresses themselves don’t necessarily have an ‎obvious pattern in the way they are assigned like a telephone area code would.  It’s ‎a bit like solving a mystery, and the geolocation companies use a variety of ‎methods to approach the problem.  ‎ /injects>