Computer Tips - Is is there a good free program for making diagrams?

Date: 2013apr15 OS: Windows, Linux Product: Dia Q. Is is there a good free program for making diagrams? A. Dia is great. Its like Visio. Free of charge. Its part of Gnome but there is also a Windows version. https://live.gnome.org/Dia See also http://www.davekb.com/search.php?target=graphviz