Source: http://www.businessinsider.com/chart-of-the-day-virtual-goods-2011-2
In Mary Meeker's latest huge presentation on the future of technology, she includes a slide projecting the virtual goods industry to total $2 billion in the US for 2011.
In case you're wondering how the $2 billion market breaks down, she helpfully included another slide breaking down the industry. As you can see, in-game currency is the most popular way to spend real dollars on fake goods, with maps/levels the least popular.
Click here to see the rest of her presentation which is loaded with interesting charts like this.
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