Four short links: 22 June 2009

Decaying Friendships, Crowdsourced Cars, Aussie Gov 2.0, Zoomable Presentations

1. Half of All Friends Replaced Every 7 Years -- to put it another way, the half-life of friendship is 7 years. (via zephoria on delicious)
2. Crowdsourced Car Design -- an interesting approach, and I can imagine it being described as "threadless for cars". (via timoreilly on Twitter)
3. Australian Gov 2.0 Taskforce -- The Aussies are getting their Gov 2.0 on. Check out Senator Kate Lundy's Public Sphere event today got a lot of Twitter action.
4. Prezi -- sexy zoomable presentation creator. Keynote meets Ken Burns Effect on PCP. Nifty look from a Budapest-based startup.