Bitly, whose mission is to reinvent how people discover and share content on the web, has officially acquired Twitterfeed. Twitterfeed allows bloggers to “feed their blogs to Twitter,” Facebook, and other services using RSS. The acquisition will be used to bring the enhanced sharing functionality of Twitterfeed directly to bitly.com, making it easier to collect, organize, shorten and share links. Currently, Bitly is one of the leading URL shortening services. It was even Twitter’s preferred shortening service until the company decided to develop their own. “For years now, we’ve…