I read Cryptonomicon a month or two ago and really enjoyed it. Seemingly serendipitously, a post about encrypting email turned up on Slashdot the other day:(http://yro.slashdot.org/story/11/12/20/0158227/do-slashdotte...) and I realized that with everyone basically using webmail services now, the chance for something like Ordo to take hold at-large is even less (given that fewer and fewer people actually use email clients anymore).
I'd like to fantasize that there could be a way to use a social network like Facebook with a tool like Ordo -- that is, most the data (photos, in this case) you upload to FB is encrypted, and only people who you've approved can decrypt it. Using steganography this is probably already possible with FB, probably not practical, though.
