Mondy Beller, the VP of eCommerce for PacSun, spoke just before I did at the Responsys event about the integrated marketing programs PacSun is developing. Here are the lessons I learned from her:

• Your biggest priority should be to build a unified customer database. Beller gave some great examples of multichannel campaigns — running email or Facebook messages that match with customers' recent purchases or daily promotions that are running in store. None of these work without a single customer database that stores all of the customer information.
• Develop trust with your customers. Beller said PacSun is lucky because its young target audience is both technology savvy and wants to engage in an interactive relationship with PacSun. This makes it easier for PacSun than for other brands to gain customer permission, registrations, and behavioral data. But PacSun still works to nurture trust with its audience. It uses QR codes in stores to get shoppers to log products they browse or to register for mobile promotions. It will also be using iPads to help sales reps show fashions or register customers for email or Facebook while they are in the store.
• Use Facebook for research and relationship building. PacSun certainly uses Facebook to distribute promotions. But it also uses it to converse with customers. It reads and responds to comments fans post. It posts questions and conversation starters. And it listens to the community to test product ideas, pricing, and the buzz about current promotions. 
• Jump into emerging media now, no matter how big or messy your database is. Beller’s advice here is that it is hard to learn when you aren’t doing anything. And the world of emerging media isn’t slowing down any. So she encourages you to start immediately. With something. Anything. In order to try, learn, improve, and figure out what you need to change or reprioritize in order to mature past your initial trials.