Ever wonder how LOCKSS works?

Over in the ACM Transactions on Computer Systems, v23i1, is a long article explaining just that: The LOCKSS peer-to-peer digital preservation system by Petros Maniatis, Mema Roussopoulos, T. J. Giuli, David S. H. Rosenthal, Mary Baker. Much of the article is very accessible to non-CS academics and is a very interesting explication of the LOCKSS project. Oh yeah, Lots Of Copies Keeps Stuff Safe. Preprint here.