Twitter is a useful place for following breaking news and keeping up with what the people you’re already interested in are doing, but its relative dearth of discovery features and a lack of organized community spaces make it pretty hard to connect with anyone you aren’t actively seeking out. The company is thinking about changing that. Twitter is on a tear with new features lately and its latest experiment, called Communities, is designed to make it easier to connect around shared interests. Users will be able to join these new…