That's a bit misleading, I think. The full paragraph:

You are solely responsible for any content and other material that you submit, publish, transmit, or display on, through, or with our Services (“Content”). You grant us a non-exclusive, worldwide, royalty-free and fully paid license to use the Content, as necessary, for purposes of providing the Services to you and other users of the Services. All rights in and to the Content not expressly granted to us in this Agreement are reserved by you.

Anyways, legal mumbo jumbo aside (we obviously could make this clearer), we absolutely don't sell or give your data to anybody but you. That's one of the major differences between us and some other analytics companies. Your data is yours and we won't monetize it.