This seems like a very sensible decision. Blogs report what others are saying when they republish.

The Ninth Circuit Court of Appeals ruled last Tuesday that Web loggers, website operators and e-mail list editors can't be held responsible for libel for information they republish, extending crucial First Amendment protections to do-it-yourself online publishers.

There is one lesson from how this case came to happen in the first place: if you send email to someone there is a very real chance that the email will be forwarded to others. If you want only the receiver to hear your thoughts then talk to them in person. Heck, even phone conversations are less likely to be recorded than emails are likely to be forwarded.