I’ve spent the past few days contacting experienced marketing professionals in the professional services industries to ask how they measured the value of thought leadership to their firm’s financial performance and I heard an extraordinary number of tactical responses that covered web metrics (e.g. page views), social media (e.g. sentiment analysis), mindshare (e.g. media mentions), sales (e.g. CRM metrics counting client meetings, usage in proposals, etc.) and loads of anecdotal evidence (e.g. stories about clients...