I am a big fan of the Software Wars graphic map. Since it hasn’t been updated for years, MrTomLinux decided to recreate it from scratch in SVG and to share the files.
http://blog.mrtomlinux.org/index.php?pages/Software-Wars
You can open and edit the svg in Inkscape
http://www.inkscape.org