We'll be shuffling some data and domains to a new host over the coming weeks.
If the forum is inaccessible, try accessing it directly at http://bepu.nfshost.com/forum.
If this blog is inaccessible, try accessing it directly at http://bepu.squarespace.com.
The Codeplex page at bepuphysics.codeplex.com will be free of any major changes (apart from engine updates, of course!).