FSF Releases GNU Affero General Public License

The Free Software Foundation just released the final version of the GNU Affero General Public License (GNU AFDL).  This license covers software that is hosted on a computer network (SaaS - Software as a Service).  The regular GNU GPL only covers software distribution, so you are able to run modified GPL code on a network server without releasing your modified source code.  The GNU AFDL prohibits this and ensures source code for hosted software is made available.

from FSF:

"The Free Software Foundation (FSF) today published the GNU Affero General Public License version 3 (GNU AGPLv3). This is a new license; it is based on version 3 of the GNU General Public License (GNU GPLv3), but has an additional term to allow users who interact with the licensed software overa network to receive the source for that program."

It will be interesting to see which projects adopt this license and what its effects will be.  I can imagine that commercial companies would be very hesitant to use AFDL code.