We have a link to the Washington-based foundation for the future on our site, originally related to Arthur Jensen being awarded the Kistler prize.
Rocketplane-Kistler is one of the companies competing in the private space industry, offering an independent launch platform.
In perusing their site, I noticed this document - dating back to 2000, but interesting nonetheless. It's titled "When Seti Succeeds: the Impact of High Information Contact"
It's a series of scientific aticles on astrobiology, sociological, and societal impact of such an event, and speculates as to what shape it might take.
Among them a Dyson sphere, a probe, and other possibilities. Fascinating.