Attached Link: http://www.copyright.gov/circs/circ1.html

Enough theorizing, read the damned law!

"WHAT WORKS ARE PROTECTED?
Copyright protects "original works of authorship" that are fixed in a tangible form of expression. The fixation need not be directly perceptible so long as it may be communicated with the aid of a machine or device. Copyrightable works include the following categories:

(1) literary works;
(2) musical works, including any accompanying words
(3) dramatic works, including any accompanying music
(4) pantomimes and choreographic works
(5) pictorial, graphic, and sculptural works
(6) motion pictures and other audiovisual works
(7) sound recordings
(8) architectural works
These categories should be viewed broadly. For example, computer programs and most "compilations" may be registered as "literary works"; maps and architectural plans may be registered as "pictorial, graphic, and sculptural works."

This is not a grey area folks. These lights are code, and code is protected. Just ask Bill Gates. The similarities have been documented and in all liklihood the difference is less than one percent. If I republish someone else's book with a few instances of changed grammar, I'm liable for legal action and I'll loose.

And I could have sworn I put this link in my earlier post.