Second Life operator Linden Labs is doing very nicely, thank you very much, earning most of its revenues from land rentals: rates are $20 per acre and $195 per month. Land mass is growing at 8 percent a month and currently stands at 60,000 acres, and brands account for five percent of real estate sales. Linden Labs doesn’t release revenues figures but Second Life’s parallel economy is estimated to be worth around $500,000 each day and to be growing by 15 percent monthly. A Congressional committee is investigating whether virtual assets and incomes should be taxed.