(1) The vast array of commercial messages has also made their contextualisation increasingly difficult.

(2) For the uninitiated, spam is an unsolicited commercial message , or something you didn't ask for trying to sell you something.

(3) A commercial message involves stakeholders, with vested interests, providing essential financial backing to the media conglomerate.

(4) In this sense, it will be as much about the decoding of visual commercial messages as about photography.

(5) Social media is a forum to engage and build relationships, so it shouldn't be used to deliver a non-stop commercial message.