Life Line Screening conducted three email campaigns using eShare's technology to integrate viral sharing and referral programs. The most successful campaign, which offered $20 off a stroke risk test, achieved a 660% return on investment. This campaign gained additional exposure through eShare's viral sharing feature, with 7% of respondents receiving the offer from a friend or family member. The campaign helped Life Line Screening expand its customer database, increase redemptions, and identify influential customers to target in future marketing.