From Consumerium development wiki R&D Wiki
- P2Pmap - insightful peer-to-peer mapping systems
- JXTA - Java P2P service platform: secure bandwidth, processing power, storage and backup sharing
- GNU Barcode program Generates postscript files of UPC, EAN, ISBN, CODE39 and other encoding standards
- http://www.free-project.org/ The GNU.Free e-democracy software development has been discontinued, but the software is still available. It's in Java and could be useful in governing campaigns. See also voting system options described in wikipedia (very comprehensive, with examples, tradeoffs of different systems).
- http://gsoap2.sourceforge.net/ (NEW) - The gSOAP toolkit is a cross-platform development environment for C and C++ SOAP/XML Web services (SOAP 1.1/1.2, WSDL 1.1). gSOAP supports XML serialization of native C and C++ data types.