If you use Google Maps for mobile with GPS enabled on your phone, that's exactly what you can do. When you choose to enable Google Maps with My Location, your phone sends anonymous bits of data back to Google describing how fast you're moving. When we combine your speed with the speed of other phones on the road, across thousands of phones moving around a city at any given time, we can get a pretty good picture of live traffic conditions. We continuously combine this data and send it back to you for free in the Google Maps traffic layers. It takes almost zero effort on your part — just turn on Google Maps for mobile before starting your car — and the more people that participate, the better the resulting traffic reports get for everybody.
- Paul Jones
he four American companies that have come to define 21st-century information technology and entertainment are on the verge of war. Over the next two years, Amazon, Apple, Facebook, and Google will increasingly collide in the markets for mobile phones and tablets, mobile apps, social networking, and more. This competition will be intense. Each of the four has shown competitive excellence, strategic genius, and superb execution that have left the rest of the world in the dust.
- Paul Jones
Facebook users can on average reach more than 150,000 other Facebook users through friends. A related dimension of this analysis is how many people the average person can “reach” through friends of his or her friends. Again, the average Facebook user in our sample has 245 friends, and their average friend has 359 friends. We also know that the average friends list is interconnected such that 12% of a user’s friends friends are already their friends. An overly simple calculation would lead us to believe that the average Facebook user in our sample can reach 77,400 people through their friends and their friends of friends (calculated as 245 *(359*1-.12)). However, this calculation overestimates the reach of most people’s Facebook networks. The relatively small number of Facebook users who have very large friends lists disproportionately inflates this average, both because their networks tend to be so large and because their networks tend to be less dense on average. In our sample, the...
- Paul Jones
Big Data is already transforming the study of how social networks function. In the 1960s, Stanley Milgram of Harvard used packages as his research medium in a famous experiment in social connections. He sent packages to volunteers in the Midwest, instructing them to get the packages to strangers in Boston, but not directly
- Paul Jones