The document outlines 10 things the author has learned about content strategy from their experience at eBay. Some of the key lessons include: 1) Content is a broad field with many approaches; 2) Measurement of effectiveness is important but key performance indicators should not be the only goals; and 3) Content has always been modular and adaptable to different formats and platforms. The document advocates for data-driven measurement of impact, considering a global approach to content, and focusing on creating content that customers love over rigid organizational structures.