I'd like to host the blockchain via Bittorrent, seed it from my VPS and announce on http://openbittorrent.com/

 But how do I create a .torrent from rtorrent?

 It's easy to do on the desktop but wasn't so clear from the commandline. I used:
in the end.

Links:
rtorrent: http://libtorrent.rakshasa.no/
Transmission howto create torrent (desktop): http://wiki.foresightlinux.org/wiki/display/docs/How+to+create+a+Torrent+file
How to do it from Windows: http://torrentfreak.com/how-to-create-a-torrent/
The linux Bitcoin & python doesn't seem to be available from the Bittorrent website anymore ( http://download.bittorrent.com/dl/BitTorrent-4.0.2.tar.gz etc is 404) so I used Bittornado

edit... working on it...

I guess now I have to start rtorrent and add that .torrent file?

p.s. if you're thinking of doing this I suggest don't host it on the same machine as one with a live wallet.

Is it working for you?

edit:

Already hosted here :p
http://sourceforge.net/projects/bitcoin/files/Bitcoin/blockchain/

There should be some checks and measures and more easy for new users to import a blockchain, and md5sum checking too.