The order does not cover the Green Zone, which houses Iraqi government buildings and the U.S. Embassy, or military installations, government institutions, hotels or some private companies.

CNN: Baghdad to remove blast walls around neighborhoods

More than 1, 400 organizations around the world, including large enterprises, educational institutions, government agencies and the US Military, currently use Second Life to hold meetings, conduct training and prototype new technologies more efficiently and cost effectively.

FORBES: Yahoo!'s New HQ: A Modest Proposal

The initiative aims to educate, challenge and spark action from all sectors of our society -- citizens, communities, businesses, nonprofits, faith-based institutions, philanthropic organizations, and government -- to ensure military families have the support they have earned.

WHITEHOUSE: Press Briefing