documents/music/pictures/video backed up nightly to my fileserver (which is a central backup essentially, and where my xbox gets it's media). pictures are also duplicated on flickr.
I had burned a dvd monthly of the documents, but I've been slacking on that. Trying to figure out a decent remote backup option.
this looks rather interesting, but I'm not sure I like the idea of handing all my data over to another company. I might start doing a mirror of my backup server using an external HD monthly and just taking it to work.