Improving Internet access in Africa is a fight on several fronts — building undersea cables, setting up regional exchanges and bridging the last mile to homes and businesses — but the continent is making progress.For example, Africa’s mobile industry is booming — subscribers grew by 33 percent over the past year — and carriers say they will invest $50 billion over five years to boost cellphone coverage.To read more of this Reuters story see uk.reuters.com/article/internetNews/idUKL1477680420080514.