You might have an interest in my work to understand the diversification of web interconnection and content delivery models, largely driven by the substantial increase in streaming video and the proliferation of Content Delivery Networks.  ISPs have devised many new deviations from the traditional peering/transiting dichotomy including: use of Internet Exchange Points by Tier-2 ISPs, paid peering, CDN surcharges, equipment co-location, e.g., Netflix Open Connect Network; “specialized networks” and Intranets/ Multiprotocol Label Switching and non-carriers like Google securing Autonomous System identifiers.

            Some retail ISPs also want to increase to three the number of payers for last mile content delivery.  Currently end users pay monthly Internet access subscriptions and directly interconnecting, upstream carriers pay when traffic for delivery well exceeds what the retail ISP can or will hand off for upstream carriage.  The targeted third revenue source does not directly interconnect, but constitutes a major source of content, e.g., Netflix.

            I’m working on a paper that examine existing and likely future interconnection disputes with an eye toward identifying where conflicts will arise and whether commercial negotiations can reach closure on a timely basis.  Here’s a link to slide pack summarizing the paper:
http://www.personal.psu.edu/rmf5/New%20Models%20and%20Conflicts%20in%20the%20Interconnection%20and%20Delivery%20of%20Internet-mediated%20Content.ppt.