The "Share a Coke" campaign was a huge success for three main reasons:
1. Simplicity - By personalizing bottles with popular names, it delivered a simple yet powerful message that resonated globally.
2. Personalization - Putting names on bottles connected with consumers on a personal level by appealing to their desires for self-expression and human connection.
3. Socialization - The campaign encouraged social sharing on platforms like Facebook, gaining 25 million new followers and over 500,000 photos tagged with the campaign hashtag in the first year.