Some embodiments of the invention provide a server apparatus, comprising: a control block comprising at least one processor; at least one data reception unit operable to receive a request to share a picture; at least one storage facility, storing programmed instructions for execution by the control block, the programmed instructions defining an image analysis engine operable to determine that the picture comprises an image of a person; and at least one data transmission unit operable to issue a request to the person, or someone associated with the person, to consent to sharing the image. Other embodiments provide a method, performed by at least one computer. The method comprises: (A) receiving a request to share a picture; (B) determining that the picture comprises an image of a person; and (C) requesting that the person, or someone associated with the person, consent to sharing the image.