
We get about 10,000 leads a month from our blog and 30% of those leads came from a blog post that was posted that month. I could fire my blogging team and our lead gen would only drop 30% the next month. If I fired my entire AdWords team, that lead gen would go down 100%."
-Mike Volpe, CMO of HubSpot, in remarks at SugarCon 2013.