Shanghai-based video site Tudou.com celebrated its three-year anniversary by changing its logo to a smiley face on Friday. This week, the company also signed the SARFT-sponsored self-discipline pledge to clean up its broadcasts. Eighty-one companies joined the third and latest signing of the pledge that was initially signed by eight state-owned medias on February 22 and 42 websites on March 10. Tudou.com has recorded 100 million daily broadcasts, 20 million daily video searches, 10 million unique daily visitors and 60 million unique monthly users. Tudou was founded on April 15, 2005.