A lack of competition is behind slow upload speeds for Canadian broadband Internet customers, according to analyst Alan Breznick, and only the entry of a disruptive force like Google Inc. will bring the country up to speed. Despite the rollout of new technologies, Canada ranks 55th out of 172 countries when it comes to broadband upload speeds, stuck behind places such as Cambodia, Kenya and Mexico, according to American broadband testing and web diagnostics company Ookla. Canada has slipped down the overall broadband speed rating to 36th in the world, down six spots from June...