Social media usage continues to grow rapidly. 73% of online adults now use social media, with the highest usage rates among 18-29 year olds at 90%. The most popular sites are Facebook with over 1 billion users, Twitter with 560 million registrants, and Google+ with 400 million users. Marketers are now integrating social data with other customer data to deliver more personalized and relevant experiences across multiple channels. Video, especially short-form micro-videos, is also becoming increasingly important on social media.