name: Manuel Arturo Izquierdo email: url: privateEmail: tag: updated: Manuel is an archaeologist graduated at the Universidad Nacional de Colombia. Currently he is working at the National Astronomical Observatory at the same university. There he has two research fields: the Archaeoastronomy and the Digital Astronomical Image Processing. He has been a Linux fan for three years using it for software development with the Tcl/Tk package and recently the GTK toolkit. The Observatory's network runs only under two platforms: Linux and Macintosh. The Observatory is very interested in promoting the use of Linux in the campus.