Pushing cheap broadband and more use of Google, the search giant is making one of its biggest moves yet into the business of providing Internet infrastructure, installing a fiber-optic backbone to dramatically improve connectivity in Kampala.The calculus is simple for Google: the more that people do online, the better its core business of selling Internet ads can be. That’s why the company has been stringing fiber-optic connections to homes in Kansas City and other U.S. cities and has toyed with the idea of launching fleets of balloons or blimps that could beam wireless Internet access down to rural areas throughout the world. Read more