Mark W. Schaefer presents 3 key truths about social media engagement:
1) Engagement must be tied to measurable business objectives like customer acquisition or brand awareness, not an end goal itself.
2) Engagement alone is not necessarily an indicator of financial success - Apple has little social media presence but immense brand value.
3) Engagement comes at a cost of time and resources, so companies must balance engagement with other priorities like consulting or product development. The key is using engagement tactically to support broader marketing strategies.