It is called BitTorrent. Generate the backup file as described in the parent article, give it a saucy name involving a (female) celebrity and let it out into the wild. As disk space is effectively free and people tend to hoard files, I suspect you'd have no problems recovering your file a year or two down the line.
(I tried this way back when using WinMX (anyone remember THAT?) to see whether it would work. It did.)
You could even throw a little steganography in to the mix, so those who check for the content they want, but pay little attention to file size continue to participate in storing your data!
(I tried this way back when using WinMX (anyone remember THAT?) to see whether it would work. It did.)
We dubbed it 'hardcore backups.'