Web 2.0 Sites that no longer work.

Here are two sites that I have noticed that no longer accept registrations or you have to be logged in to view the link. If you come across any that we cannot get links from post them here and hopefully we can clean up the web 2.0 category a bit.

1. libcom.org - have to be logged in to view anything
2. ideamarketers.com - cannot register