As some of the above posts have already mentioned, why not use QR codes on marketing material? It's no cost. Many websites to choose from that instantly give you the QR file to download once you've supplied whatever URL you want people to be directed to. We are finalizing our artwork for marketing material this week and it looks great.
Our posters and flyers will have the QR code this season, which directs right to our Facebook page increasing the "Likes" so fans will always be up-to-date during heavy promotional periods and in the off season. We really interact with our fans, ticket giveaways, etc, etc. and put emphasis on the FB page vs. having the QR code lead to the website.
We're looking forward to feedback this season as to how many scanned the QR codes considering our advertising efforts (posters/flyers) are heavily distributed around many high school, colleges, and university campuses within a 2 mile proximity of our location. QR codes are definitely being seen just about everywhere we look now, but for the most part it is certainly a younger generation that will be using them.