Twitter to target ads based on your browsing history, but will support Do Not Track opt-out

Though Twitter is one of the few companies that lets its users opt out of browser tracking, the social network is gearing up to deliver advertisements based on that very technology and more. Twitter says that it'll soon begin delivering sponsored tweets within the United States that are based on what its users do elsewhere on the web, such as where they frequent and what newsletters they subscribe to -- a company could even promote tweets only to users who subscribe to their emails. Twitter hope...