Who owns BLOG content?

Some highlights below but does make you think. The question of whether RSS readers vilotate copyright is also mentioned since they do format content differently than the author's intended format.

The issue of who owns the copyrights to Weblogs, in particular, seems to
have caught some people off guard. Mark Potts, chief technology officer for
Hewlett-Packard's management software business, says that he would be surprised
if his Weblog, which is hosted on HP's Web site, was copyrighted by his employer.
"That's an interesting question," he says.
But, after checking the company's policy, an HP spokeswoman discovered that the rights to Potts' content belong to the company and not the CTO. "HP owns the copyright for anything written by an HP employee published on an HP Web site, including blog entries," the spokeswoman says via E-mail.

The terms of use for Microsoft's MSN Spaces service claims "all contents of
the MSN Web Sites" are copyrighted by Microsoft or its suppliers and that users
grant Microsoft permission to copy, distribute, edit, and sublicense their
postings. Does that mean MSN bloggers relinquish some of their own copyrights?
Despite multiple requests for clarification, Microsoft has been unable to
provide any.