[Chad Fairbanks]

THat's what I don't get - If someone publishes an article, an I want to comment on it, what if I am commenting on a specific portion - I can't quote even a sentence in order to point out the fallacies contained within it?

I can understand wanting to protect one's copyrights, but to not even allow a quote or two for purposes of comment and/or criticism goes against the very concept of 'Fair Use', imho...

[AppyPappy]

I can't quote even a sentence in order to point out the fallacies contained within it?

It's up to the owner to decide. That's why some can say "links only". However you can summarize what is in the article and there is NOTHING they can do about it. You don't even have to link. You are screwing them. Which is good.

[Jim Robinson]

You can quote it. And you can quote as much of it as you need to make your point. But it depends on how you're using it. You can't use it for commercial purposes. And the copyright holder can challenge you at any time. And if he takes you to court and convinces the judge that your use of his copyrighted material is not a fair use, you lose.