According to the document: 1. Twitter had nearly 75 million users as of January 2010, with about 50 million tweets sent per day, though only 20% of users are considered active. 2. Facebook had over 400 million active users as of 2010, with 50% logging on daily and 35 million updating their status. The average user has 130 friends and sends 8 friend requests per month. 3. YouTube accounted for nearly all (99%) of the 32.4 billion videos watched in the U.S. in January 2010, surpassing Yahoo as the 2nd largest search engine after Google.