One year ago I penned Event Processing in Twitter Space, and today parts of the net are buzzing about Twitter. In a nutshell, Twitter is a one-to-many communications service that uses short messages (140 chars or less). Following on the heels of the blogging phenomena, Twitter has been primarily used for microblogging and group communications. Twitter, and Twitter-like technologies, has great promise in many areas.   For example, you could be subscribed to the @tsunamiwarning channel on your dream island vacation and get instant updates on potential disasters.   A team of people working in network management could subscribe to the @myserverstatus channel and receive updates on their health of their company IT services.   Passengers could subscribe to the @ourgatestatus channel and follow up-to-date information on their fight. Twitter was created to answer the simple question, “What are you doing now?”