During sign-up, the user must agree to the terms and conditions and privacy policy.
Is it sufficient to state: "by registering, you agree to our terms of service and privacy policy" (where the words "terms of service" and "privacy policy" are hyperlinked to their respective documents, and where the blurb is placed directly above the "Sign Up" submit button)
Or, does there need to be a check box so that the user must explicitly click it to indicate agreement?
I see both of these scenarios all over the web. I would prefer not to have the user click something e.g. to reduce friction at sign-up time.