Martin Kuhn‘s paper on A Proposed Blogger Code of Ethics [PDF] to which several of you contributed is available via a link from the Blogging, Journalism, and Credibility conference site at Harvard Law’s Berkman Center. As part of the paper, Martin proposes a “Bloggers Code of Ethics” which is posted and critiqued there (you can contribute to that discussion too).
Like several of the posters, I don’t agree that you should secure permission before linking to an article.
Enjoy and put your ideas out there. Martin has given you a good place to start.