According to the Guardian, YouTube has overtaken MySpace as the place to be on the Internet:

The video sharing site has taken a 3.9% share of global internet visits a day compared with 3.35% for MySpace, according to internet analysis company Alexa.

YouTube's popularity has grown immensely over the first six months of the year. In May its reach outgrew that of the BBC's websites.

According to Nielsen/NetRatings, YouTube's American user base grew by 297% in the first half of the year.