So Greg Easterbrook, a writer for Wired, write an article dissing NASA and listing what their priorities were versus what he thinks they should be. NASA responded by posting an open letter, wiki-style, allowing other scientists to edit it and such. This is awesome because it will become so much more than a response. I suspect this document may end up becoming the roadmap to the future as far space exploration and colonization goes, and I am glad we have the internet to facilitate this dialog.