Eroi, established in 2002, is a leading interactive agency focused on building brands through community engagement and effective social media strategies. The document outlines Wacom's journey in leveraging social media to foster customer relationships, enhance loyalty, and encourage interaction, leading to significant growth in community participation and brand visibility. Key takeaways emphasize the importance of listening, planning, and maintaining a creative approach in social media marketing, while also recognizing the need for dedicated personnel to manage these efforts.