Not sure why Netflix would be in your list. AFAIK, they run their cloudy stuff on AWS, which isn't too unusual; chaos monkey is neat though? Their CDN boxes are exotic because they run a lot of sessions at relatively pedestrian bandwidths and a lot times 5-20Mbps adds up to a huge number. There's real work there and it's impressive, but it doesn't need exotic network protocols. Bulk encryption offloading NICs are super handy for their use case, which is certainly somewhat exotic.

They haven't said much lately about sending content updates to their CDN nodes, but I think the throughput requirements on that isn't as high.