With an interesting video, an article from Data Center Knowledge:

Level 3: Our CDN Business Is Growing

Level 3 (LVLT) has increased the capacity of its content delivery network by a factor of 30, according to Lisa Guillaume, VP at Level3 who spoke to Beet.tv last week at Streaming Media East. "We have a cost advantage in the marketplace, because we own all layers of the network we're operating our CDN on," said Guillaume.