"Six weeks ago, Richard Stallman condemned network applications as proprietary software. He is right, of course -- not only is the source code for most network apps unavailable, but except in a few cases like Clipperz, using them means that you cede control of your data.
"But if Stallman's observations aren't enough to stop you from using network apps, a comparison of a leading example like Google Apps with free and open source software (FOSS) such as OpenOffice.org should be."
