A few days ago I posted some tidbits on Google making up 6% of internet traffic.
If you want all the gory details. Telco 2.0 guys have it here Latest Internet traffic stats: Google and CDNs outmuscle Tier 1 Telcos
I like the contrast of declining “Revenue from Internet Transit Slide” with the increasing “Revenue from Internet Advertising”
Reminds me that this diagram still has meaning when analyzing opportunities in networking.