Microsoft's acquisition of LinkedIn for more than $26 billion has created quite a stir -- at least in my world. Ellen Levy reported that the deal can boast a number of superlatives if you look at it right: the largest sale of a consumer Internet company in history; the largest sale of an enterprise software/cloud company in history; the third-largest sale of a technology company since 2001; and the largest acquisition ever made by Microsoft. What's interesting to me is how poorly the social networking industry is doing overall.