* Payment
** [https://github.com/FellowTraveler/Open-Transactions/wiki Open-Transactions] via <sup>[[Benutzer:Manupool|Manupool]]</sup>
** <span style="text-decoration:line-through">[http://members.iinet.net.au/~mcmeikan/pktp/ PKTP]</span> [[Benutzer:Zero|Zero]]: "Just cleartext, pgp signed"
** [http://fincryp.no-ip.info/shop.pl PKTP-automated] PKTP automated payment example code
** [https://loom.cc Loom] via Patrick/agile-banking group
* Payment Technology
** [http://www.readwriteweb.com/mobile/2011/02/inside-secure-announces-open-NFC-software-for-android-gingerbread.php Open NFC] via <sup>[[Benutzer:Manupool|Manupool]]</sup>