Well… I am working on alternatives to make OWN CDN…
I have few options to create such CDN
* Google App Engine
http://24ways.org/2008/using-google-app-engine-as-your-own-cdn
http://www.digitalistic.com/2008/06/09/10-easy-steps-to-use-google-app-engine-as-your-own-cdn/
* Amazon EC2
* Wowza
http://www.wowza.com/forums/content.php?81-How-to-achieve-the-lowest-latency-from-capture-to-playback
* GeoIP, NGinx, Bind, Varnish
How to build your own CDN using BIND, GeoIP, Nginx, and Varnish
http://www.caraytech.com/geodns/
https://www.varnish-cache.org/
* ONApp
http://onapp.com/cdn/pricing/
http://cdn.onapp.com/files/datasheets/onapp_cdn_datasheet.pdf
Some Open Source to create CDN
http://www.fromdev.com/2011/06/create-cdn-content-delivery-network.html
http://labtel.ing.uniroma1.it/opencdn/
http://www.coralcdn.org/
http://cacheboy.net/
http://code.google.com/p/phloem/
Other Resources
http://serverfault.com/questions/244158/how-to-create-my-own-cdn-or-private-cloud
http://nixcraft.com/web-servers/17014-creating-own-cdn-using-nginx-possible.html
Limitations
* Performance that you get from a professional / Commercial CDN
* Smart DNS
* Edge points
* Caching server – squid or nginx
