PURCHASE, NY: With the return of Mountain Dew Throwback to its permanent product line-up, PepsiCo is supporting the vintage-themed brand to the end of summer using only digital media and PR.

The key component of the campaign is the Mountain Dew Throwback Shack, a website in which visitors go inside the home of Willy, the first Mountain Dew pitchman. Currently, visitors can interact with dozens of things in the home, like a TV which plays old Mountain Dew ads and a ...