http://basebox.ngoinabox.org/
http://volunteerforchange.org/
http://toolcrib.ning.com/
http://dotorganize.net/
http://openprogress.org/Open_Progress
http://icommons.org/articles/5-resourceful-sites-ngos-cant-live-without
http://tacticaltech.org/
http://www.itrainonline.org/itrainonline/english/searching.shtml