[smallnix]

Free membership which accumulates points. These can be spent on books. Books are priced in points according to a metric (TBD). Bad books are 0 points. You can also get points by bringing in good books.

(It's like uh some kind of currency based barter dude ;) )

[mejutoco]

It sounds like physical bittorrent

[smallnix]

With the difference that with time you get free credit automatically. Perhaps somewhat comparable to optimistic unchoking in BitTorrent :)