Riseup has been doing great work for over a decade now. A lot of their security work, both linux kernal patches, and how to documents, have informed startups. I

Riseup has been doing great work for over a decade now. A lot of their security work, both linux kernal patches, and how to documents, have informed startups. I know they were very influential in Wesabe. http://conferences.oreillynet.com/cs/et2007/view/e_sess/10492 http://conferences.oreillynet.com/cs/et2007/view/e_sess/1049... Their privacy and security work was influential in OAuth and know they're also looking at federated social networking. http://www.slideshare.net/rabble/implimenting-privacy-oauth-and-token-madness http://www.slideshare.net/rabble/implimenting-privacy-oauth-... More recently they've been building Crabgrass, a social network tool for collaboration. https://we.riseup.net/ https://we.riseup.net/ It's open source and has been adopted by various UN agencies.