Astrobiology
http://www.liebertpub.com/overview/astrobiology/99/

Astrobiology Magazine
http://www.astrobio.net/

Astrobiology.com
http://www.astrobiology.com/

The Astrobiology Network
http://www.astrobiology.net/

The International Journal of Astrobiology
http://journals.cambridge.org/action/displayJournal?jid=IJA

New Scientist Astrobiology
http://www.newscientist.com/topic/astrobiology