We present BlogScope (www.blogscope.net), a system for online analysis of temporally ordered streaming text, currently applied to the analysis of the Blogosphere1 . The system currently tracks over ten million blogs and handles hundreds of thousands of updates daily. BlogScope is an information discovery and text analysis system that offers a set of unique features. Such features include, spatio-temporal analysis of blogs, flexible navigation of the Blogosphere through information bursts, keyword correlations and burst synopsis, as well as enhanced ranking functions for improved query answer relevance. We describe the system, its design and the features of the current version of BlogScope.