Has anyone had a look at the Media Cloud project ( www.mediacloud.org/ ) ? The code is here : http://www.mediacloud.org/code/ . I'm interested in this kind of visualization from web data. Some potential applications are given in the site's wikis. I'm interested in doing something like this( from a desktop app) : search the term "machine learning" and visualize the active areas and Institutes of research in this area. Has anyone done something similar and played in any other framework ? has anyone tried this code-base ?