Nielsen/Net Ratings have reported that 50% of the top ten websites in the US in terms of growth in the year to July 2006 were user generated content sites, such as photo sharing, video sharing, and blogging.
The top UGC site was ImageShack, which was ranked at number 4 and grew 233%, from 2.3 million visitors to 7.7 million. In many ways the most impressive growth came from MySpace, ranked 9th, which grew 183% from 16.2 million to 46 million, what makes this so impressive is that it is the only one of the largest 10 sites to have grown by more than 23% (Google grew by 23% in the year to July 2006).
By contrast older top ten goliaths showed little growth, Real Networks +3%, AOL +1%, and Microsoft -5%. The most visited site remains, for the time being, Yahoo, with 106.2 million visitors, but it only grew by 8%.
At these rates of growth it won’t be long before the 10 largest sites are dominated by User Generated Content sites, such as MySpace, YouTube, and Wikipedia.