And more relevant - how do you ensure that you will keep this respect?
While I'm very sympathetic to your business model, it's still a loss-leader for your business offering. Can you guarantee that you will never attempt to monetize this (probably) huge and growing dataset? Tomorrow, next year, and (especially) after a private equity manager starts waving cheques with many zeros on them in under your nose?
This is the clincher for me. Anyone trying to compete with Google needs to be up front and detailed about how they handle your privacy, and what they'll do to protect you.
While I'm very sympathetic to your business model, it's still a loss-leader for your business offering. Can you guarantee that you will never attempt to monetize this (probably) huge and growing dataset? Tomorrow, next year, and (especially) after a private equity manager starts waving cheques with many zeros on them in under your nose?