google is your friend, no doubt, but the only thing the above link gets is 10 hits and no real info. the lfs-usage link,
is pretty cool, though. i also saw something about bblfs a little while back but i thought i saw more than just a joke about the need for a bblfs book, which seems to be all that's out there now. i dunno, seems like the stuff i saw (or thought i saw, anyway) has disappeared.