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By Gerry Shih SAN FRANCISCO (Reuters) – Twitter Inc will begin showing ads to users based on their browsing history, it said on Thursday, becoming the latest Internet company to employ the controversial but increasingly widespread tracking technology. Twitters new advertising feature allows marketers to use cookies – small files planted in Web surfers computers that contain bits of information about which sites they have visited or where they are logging in from – to display highly targeted Twitter ads. Twitter, which went public last month, first announced in July that it would begin testing cookie-based ad targeting, joining the likes of Google Inc, Facebook Inc and Amazon Inc and countless other Internet companies that rely on the technology to serve ads. Twitters new feature, which is expected to raise advertising rates and revenues for the company, arrives in the midst of heightened public debate over the erosion of online privacy.