Spacedebate.org is an effort to expand the debate on the weaponization of space through a collaborative, wiki-like tool for structured debate on a topic.

In other words, its like wikipedia, except instead of developing an encyclopedia, you will be helping develop the best arguments on all sides of a topic.

The database contains hundreds of news articles and quotations relevant to the debate but the heart of the system is the argument tree which you can help edit and expand.