In addition to those on the wikipedia link from Jonnybgood, see also lumify (lumify.io) developed by Altamira Visual Understanding Environment (http://vue.tuf

In addition to those on the wikipedia link from Jonnybgood, see also lumify (lumify.io) developed by Altamira Visual Understanding Environment (http://vue.tufts.edu/ http://vue.tufts.edu/) from Tufts Lumify is for networked data analysis and data annotation VUE is more for presentation but has very basic network, and semantic analysis tools and ontology mapping capabilities. and last but not least - TimeFlow is old but useful for mapping temporal sequences quickly and easily. See https://drawingbynumbers.org/tools/timeflow.html https://drawingbynumbers.org/tools/timeflow.html