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== Coalition for Space Exploration ==
Here is a link to the Coalition for Space Exploration, a Space Advocacy blog with a journalistic bent...
[http://spacecoalition.com/]
== Secure World Foundation ==
The Secure World Foundation looks at promoting peaceful uses of space for all humanity.
[http://swfound.org/]
== Mars Underground - Lava-tubes ==
In 2009, the Geologic Society of America held their annual conference in Portland, Oregon. As part of that event, Dr. Penny Boston and I hosted a field trips to the "Cave Flow" on the South slope of Mt. St. Helens. This site offers a great primer of the lava-tube concept.
[http://gsa.marsunderground.org]