The document provides instructions for three assignments for different digital startups. The first is for an online newspaper launching public WiFi to acquire new users with $5,000 per month. The second is for a social network using recurring emails to retain existing users with $0 per month. The third is for a Groupon clone using special deals to drive user referrals with $0 per month. Each assignment requires plans for acquisition, activation, retention, referrals, and revenue, as well as mockups of related materials.