Another brilliant advertising campaign tackling the market with a fun and geeky tactic is the Guinness QR Cup.

To be more relevant and spoken about in pubs, Guinness created glasses with hidden messages; they are designed with a QR code that appears once Guinness or any other dark beer fills the glass. Beer drinkers can then scan the code with smartphones, which then gets a Tweet, Facebook status update and a check-in into 4Square. In addition, the QR code scan will retrieve coupons and discounts, invite friends to join and send out Guinness promotions.

Advertising campaigns are tackling every corner of the industry to promote products, and the interactive element of this particular campaign is truly revolutionary.