Lost Blogs

It seems that while more Odyssey blogs have been popping up, some other blogs have been disappearing.  "Living in Odyssey," and the "Odyssey Tattler" seem to be gone from Blogger completely.  When I click on the links from my blog list, these pages show up:

I think they should still stay on the web, even if they aren't updated anymore.  What's going on?  Are these blogs gone forever?