THE INDUSTRY STANDARD - Sep 27 - Second Life Residents spend an average of ~100
minutes inworld per visit. The equivalent of more than $1 billion has
been transacted between Residents in Second Life, who purchase virtual
goods and services from one another. The inworld economy grew 94% YOY
from Q2 2008 to Q2 2009. Now at ~$50M each month in user-to-user
transactions, the Second Life economy is on an annual run rate of more
than a half billion US dollars, making Second Life the largest virtual
economy in the industry. FULL ARTICLE @ PC WORLD