Interesting article on Extraterrestrial Resources: 'Living off the Land', covering the proceedings of the Space Resources Roundtable
conference. In particular it looked at ISRU - In Situ Resource Utilisation, i.e.
making use of what a planet has rather than relying on what can be brought from earth.
One interesting fact was that the magnetic qualities of moon dust mean that if you pass a microwave
over it you can fuse it into glass - making an instant glass road!