Smart city, smart planet: Sensity is creating a billion-node network of global sensors — in street lights

There are over four billion street lights in the world. Almost all of them are high-intensity discharge lights that use mercury vapor or some other toxic substance to create light. All of them are powered, and most burn out every two years.
Now what if all these could become nodes on a sensor network spanning the entire globe?

Mozilla Firefox Add-ons hit 3 billion downloads

Look at your Firefox browser on your laptop or phone. It’s likely been tweaked-out with the perfect pallete of colors and acts just the way you want. Since those add-ons became available in 2004,  more than 3 billion have been downloaded — more than the entire Internet user base and nearly half of the world’s population –Mozilla announced Thursday.