1. A computer-implemented visualization system for information analysis, the system comprising: a user interface; a processor and a memory coupled thereto, the memory storing instructions and data therein to configure the execution of the processor to configure a space on the user interface for marshalling evidence therein, the processor further configured to: visually represent a plurality of information excerpts from at least one information source in a spatial arrangement in the space on the user interface; and receive user input to manipulate the spatial arrangement of the plurality of information excerpts with respect to one another on the user interface as directed by the user for defining the evidence; receive analysis content on the user interface for associating with the plurality of information excerpts to facilitate visual cognition of the evidence in accordance with the manipulated spatial arrangement.