Copyright Question

[Searching For Truth]

I am compiling a non-partisan collection of writings in response to the re-election of President George W. Bush, primarily aimed at and written by young people. I have created a website with information about the project, and have been advised to include a statement on copyright.

Catalyst and I have been hashing out various bits, and so far I've come up with the following:

Only works with permission of the author/owner will be included. Do not submit any works copyrighted by anyone except yourself. Original works are copyrighted upon creation.
The editor of SpeakOut reserves the right to accept and reject submissions as seen fit. SpeakOut also claims the right to edit for spelling and grammar, but not content, without express permission by the author.
Authors retain the copyright privileges of their work, and are encouraged to add "Copyright [dates] by [author/owner]."

What else should I include? Is there anything I need to be worried about? (Has anyone else ever done anything like this?)

[Catalyst]

After taking a look at the SDMB's copyright notice, here's what I've got:

Originally Posted by me

By submitting works to Speakout you grant the editors of SpeakOut a nonexclusive irrevocable right to re-use your submission in any manner they see fit without notice or compensation to you. No material contained in this site may be republished or reposted without express written consent of the editors of SpeakOut, except that authors retain the right to republish or repost their own work. The editors of SpeakOut reserve the right to edit submissions in any manner that does not alter the content of the work, including but not limited to corrections of spelling and grammar, without notice.

The word "content" in the last sentence doesn't seem quite right, but I can't think of anything to replace it with.

[Catalyst]

Every thread gets one bump, right?

*Bump*

[Lute Skywatcher]

Originally Posted by Catalyst

The word "content" in the last sentence doesn't seem quite right, but I can't think of anything to replace it with.

Substance? Composition?

[Catalyst]

Substance seems like a good fit. Thanks!

Any other suggestions? I doubt that this is going to come up in a legal context, but it'd be nice if it were written correctly just in case.