Newsbubble is a tool that allows users to define their own sphere of attention to news and information by setting various filters and parameters. It uses sliders to filter information by source, popularity, media type, date, and locality. It also allows users to order topics by interest to focus on certain subjects. The interface visually arranges news streams outside the user's bubble based on their settings, and items that meet the parameters "pop" into the bubble to be viewed. This gives users control over what news and information enters their attention stream rather than having content dictated to them.