A few background comments spurred Faultline to go digging around in the forecasting archive of our sister service Rethink TV, regarding the actual cost of CDNs. More importantly, with the advent of WebRTC, Distributed CDNs (D-CDN), and some slightly more out-there approaches from the Web 3.0 crowd, it does rather look like the pressure is on for the CDN vendors. However, they are not exactly in the dark about this. Akamai, the largest, has made no bones about its shift into the services realm, focused initially on cybersecurity but moving into the financial domain. A CDN is, after all, a distributed collection of servers, and it turns out that if the likes of Akamai add an infrastructure provider like Linode…