In a recent blog post Hulu's CEO Jason Kilar spoke about why he pulled Hulu content from Boxee.
If you didn't know, Boxee.org is the free open source media center that rivals AppleTV and anything Microsoft could muster. It's socially aware (friend lists, twitter, statuses, see what friends are watching, watch it yourself etc) and it has some great content from some great providers. Ask me for an invite to the private alpha.