What to do?Edit
One problem for promoting space colonization is that the funds that control the grants snobishly favor what they call "peer review". That discriminates against novel space colonization concepts. It would therefore be a great help for space colonization to raze that ivory tower. There are blogs about strategies to actually do it. One is in English, the other in Swedish. Both are registered in Sweden, but one of them is in the English language. In both cases, they are written in a way that makes them easier to understand if you read the oldest blog posts first.
Here is the link to the blog in english: http://freesciencepublication.blogspot.se/
Here is the link to the blog in swedish: http://frivetenskapligpublicering.blogspot.se/