[ Thanks to Dart for
this link. ]
“Ardesia is a free open source application that turns
your Linux device into a digital sketchpad. You can make hand drawn
annotations, figures, a quick sketch, do some artwork or just use
it for fun. Drawings can be made using many pointing devices like a
mouse or a pen/finger on your touch screen device.“On the productivity side, this application can be really useful
as you can record whatever you are drawing, save it on your system
and then share it over a network. Doing live screencasts , demos or
on screen presentations is easy as you can stream live whatever you
are doing using third party applications like VLC or Icecast. The
application is completely free and is under GPLv3 license.“Ardesia needs a composite manager to be able to work and has
been tested with Compiz, Kwin, XCompManager (LXDE and Openbox).
Also to record your work, you need to have VLC installed on your
system. Ardesia provides binary packages for Ubuntu 10.04 and
Windows 7.”