While many public companies in the Internet space have underperformed in 2012–Facebook, we’re looking at you–LinkedIn is an exception. Just last week, the business networking firm reported $228M in revenue during the second quarter, an 89 percent increase compared to the same time period last year. Aside from pulling in advertising dollars, LinkedIn also relies heavily on its subscription model to reach its financial goals (these monthly fees made up 19 perfect of total revenue in Q2). Read the full story at Fast Company.