I nominate the Tor Project again this year because of stuff like this
28c3 talk. If "no" because they got kickbacks last year (or because they get some substantial support from the U.S.A. State Dept and other spooks) then I nominate The
I2P Project which is a competing network that hasn't gotten the press attention or cash/code contribution that Tor receives. I still believe Tor is the "right" choice. Only offer an alternative should they not be allowed back to back funding two years in a row.
This is particularly important because people are risking their lives and being killed out there for using the network to retrieve and disseminate information. That's what search engines are all about. Information.
Aside from The Network™, client-side document security/privacy is important too. So I also nominate
TrueCrypt because they pretty much solved this problem (and then some!) and they are doing it gratis. (Plus they didn't get any cash last year ;)
Maybe a Mod (im looking at you green since you bumped it ;) should fork this thread and move the posts from this year into that one lest this one's size becomes unruly.
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David Pierce