Try it out for yourself: http://www.projectcartoon.com/ [5]
Links:
[1] http://linux.philosweb.com/drupal/category/it/blogging
[2] http://linux.philosweb.com/drupal/category/it/general
[3] http://linux.philosweb.com/drupal/category/it/project-management
[4] http://linux.philosweb.com/drupal5/files/image_2_20.png
[5] http://www.projectcartoon.com/