The entire distance learning database of the Global Network Academy is available for download (almost 40,000 courses). They also offer a free, full-text, C++ programming guide.
On another note, MIT OpenCourseware has completed more than 20 courses by now - though they are yet available to the public.
From the Web site:
At a press conference on April 4, 2001, MIT announced its commitment to make the materials from virtually all of its courses freely available on the World Wide Web for non-commercial use. This new initiative, called MIT OpenCourseWare (OCW), reflects MIT's institutional commitment to disseminate knowledge across the globe.
Contributed by Sam Vaknin
Posted by
Sam at 6/24/2002 06:02:00 PM.
The open access movement:
Putting peer-reviewed scientific and scholarly literature
on the internet. Making it available free of charge and
free of most copyright and licensing restrictions.
Removing the barriers to serious research.