http://tech.newstatesman.com/whitepapers/best-practice-evaluate-implement-multi-cdn-strategy

The following is intended as a best-practices guide for companies focused on web performance,  with particular attention to those currently evaluating or implementing a Multi-CDN strategy (often called “CDN Federation”).

At Cedexis, we focus exclusively on strategies and solutions for multi-platform content and application delivery. Many of our clients are global retail, media, and technology companies that leverage Cedexis’ expertise and tools to provide the best possible performance to their worldwide customer bases.