The document discusses lessons learned from a large global survey on social media. Over 3 months, the author interviewed over 48 people across 25 countries and 4 continents to compile over 50,000 words in a report. Some of the key lessons included that social media is popular among kids and should be adopted for that reason, losing control is inevitable with social media, social networks are a powerful application, measurement is improving but still inadequate, and the gap between geeks and enterprises is shrinking as social media becomes more mainstream. Culture and language were also noted as important factors.