Links:
[1] http://pulse.veltsos.com/category/it/software/software/os/linux
[2] http://pulse.veltsos.com/category/it/software/os
[3] http://pulse.veltsos.com/category/it/software
[4] http://linux.philosweb.com/drupal5/files/rtelnk_2_0.gif
[5] http://www.edubuntu.com/Screenshots