My contribution was my multipart article on the imminent halving of Titanium costs, the Worldwide Telescope and property rights in space
Centauri Dreams talks about Omega Centauri
Astroengine talks about geodesic domes, the Eden Project and the possible use of domes on Mars
Colony worlds also talks about martian colonies and using algae.
Check out Carnival of Space week 55 at Catholic Sensibility for many more articles