21C Museum Hotels Launches Limited-Membership Loyalty Program With Unique Perks Forbes.com says 21c Museum Hotels is joining the bandwagon by launching Penguin Passport, a program only open to the first 250 people to join. The goal of Penguin Passport is to create a curated group of 21c Museum Hotel fans. These boutique properties are known for their individual design, public-area art galleries and a focus on integrating the local area into their design.   Groupon Launches New, Personalized User Experience MarTechSeries.com says....

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