Support groups/forums for military wives?

My husband is in the Army National Guard, and is deploying for 12 months to Afghanistan. This is his first deployment, and I've been really scared and depressed. We have a one year old little girl and I am pregnant with baby number 2. I asked my close friends about it and they suggested a support group. Because I'm busy raising kids I don't have time to find a group in my area to meet with in person. What are some good online websites and forums for emotional/mental support for military wives?