Are investors making a fundamental mistake in using LinkedIn’s market capitalization as a reference point for Facebook’s potential value? Selling consumer ads  (at least twice the market size of B2B ads) to a network over six times LinkedIn’s 135 million members, why shouldn’t Facebook’s value be $100 billion, about twelve times LinkedIn’s $8.4 billion market capitalization? Think again. About LinkedIn LinkedIn’s revenue increased 115% from 2010 to 2011, from $234.1M to $522.2M with adjusted earnings before interest, taxes, depreciation and amortization increasing from $48.0M to $98.7M. For six straight quarters year-over-year revenue growth exceeded 100%. Behind these powerful numbers is a smart set of business models. The business models are synergistic as each leverages LinkedIn’s social media platform, a platform about advancing careers. The platform connects professionals through vital professional histories, business-related articles and commentary. My daughter introduced me to her college life…