LinkedIn's Design for Entrepreneurs

Every professional is going to have a professional profile out to the web. It makes economic and rational sense because who knows what might find me? If I'm looking for a job, a job may find me. If I'm an investor and looking for investment, a good investment may find me... So profile is one of the ideas. The other idea is, well, what's the key glue to separate signal from noise? And the answer in part was trusted web relationships.