Beate Marie Eriksen (born 19 October 1960) is a Norwegian actress and film director. She acts in Hotel Cæsar, a popular Norwegian soap opera. The article about her on Wikipedia is the three millionth article there; another important milestone in the history of the people's encyclopedia.
This latest milestone was announced on the front page of the English Wikipedia, but searching Wikipedia for itself reveals other interesting stats (for even more stats, read about the history of Wikipedia). It has about 10 million registered users and over 17 million pages. For comparison, the oldest English language encyclopedia, Britannica, has 40 million words on half a million topics. And yes, I also found that on Wikipedia.
Although the growth of Wikipedia has slowed down somewhat in recent years, it is, without question, one of the most important sources of knowledge today. The number of articles will never grow as explosively as it did in the early days, for obvious reasons: so many topics have already been covered.