I have written before about blogs as evidence. Here is an Editor & Publisher article about how the blogs of a family involved in a North Carolina murder case are raising ethical issues for news reporters and editors.
Excerpt:
“With so much written about blogging in the past year, it’s amazing that just now we are witnessing the kind of high-profile crime case that raises new and, some say, troubling issues about how reporters and editors should regard the very personal, yet very public, information shared on Web logs.”