Australian researchers unveiled on Tuesday a Twitter tool to map moods around the world in real-time to help improve the allocation of mental health services. The online tool, called ‘We Feel’, analyses up to 32,000 tweets per minute - about 10 percent of all English-language tweets - for 600 words that are then linked to emotions such as love, joy, surprise, anger, sadness and fear. The data will be used to monitor the emotions of individuals and communities across different locations.