AllPeers, a p2p file-sharing Firefox extension, is now letting people share content when they are offline with their new Always On service. v0.60 of the product (just released) will let users send a link to content via an email. When files are shared via email they will be uploaded to AllPeers servers in an encrypted form and will only be accessible by that person. The AllPeers member gets 1GB of diskspace to share for free.