The University of Maryland launched a campaign, targeting students, with a game where they must find turtles hidden throughout campus. Playing off the college's tagline, "Fear the Turtle," and referencing the school's sports teams, dubbed the Terrapins, Red Tettemer hid 569 ceramic turtles, a mere three inches in size, in the middle of the night. Using an agency-coded blueprint of the campus, turtles were hidden outdoors, in classrooms and buildings. Who doesn't love a good scavenger hunt?

ESPN's yearly campaign promoting its coverage of "Monday Night Football" consistently features TV, online, print and outdoor elements. For the fourth year of the network's "Is It Monday Yet?" campaign, Wieden+Kennedy New York added an additional component to the mix: interactive storescapes for passersby to play a virtual game of catch with NFLers.

If users fall in love with their iPod Touch, they can have it added to their bill. Because buying one in a real world setting might require human contact.

We've seen bar codes placed in print ads that drive viewers to a microsite housing additional brand information. Coca-Cola launched an ad campaign in Singapore offering free downloadable content to consumers who scan its cans.

Chocolate is good, especially if the chocolate is wrapped around a caramel. Even by themselves, caramels are delightful. And ice cream can be phenomenal. Not for a steady diet, mind you. As I repeatedly tell my kids, treats are additive to a good, healthy eating plan, not a replacement for the vegetables. That is why I like the recent Escape from Hamsterdam game from Kia. This campaign has all the hallmarks of a real treat: a Facebook app, a game requiring a webcam, and an augmented reality experience. For the young, educated target audience, the elements are right on path …

ASICS has a knack for speaking to its target audience in unique ways. Playing off childhood memories works well for the brand.

I can't recall the last time I gave someone my business card. It's been awhile. Nowadays, people usually ask for an email address, if you're findable on Facebook or your Twitter handle. Yet business cards remain a necessity, regardless of how often they're distributed. Here's a look at business cards that stand out and stay memorable, without getting too gimmicky, in this digital age.

The Music Tee, a shirt that marries fashion with music, features album art on the front, track listings on the back and a hang tag containing a URL and unique code where consumers can download the album.

Financial services provider BMO Capital Markets runs a print ad in the Wall Street Journal every Friday. Last week, select version of the company's regularly scheduled ad featured two-dimensional barcodes placed at the bottom left-hand corner. The barcodes, called Ezcodes and created by Scanlife, bring readers to a customized Web page that offers additional information touched upon in print creative.

ModiFace has developed a technology that allows users to upload pictures of themselves into online ads. The technology is geared towards beauty and cosmetic brands and gives consumers the ability to view an "after" shot of how they'd look, using a certain product.