nginx - A high performance free open source web server powering busiest sites on the Internet.
imgix - Real-time Image Processing. Resize, crop, and process images on the fly, simply by changing their URLs.
AWS Elastic Load Balancing - Amazon ELB automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.
Cloudimage - Cloudimage.io is the easiest way to resize, store, and deliver your images to your customers through a rocket fast CDN.
Azure Traffic Manager - Microsoft Azure Traffic Manager allows you to control the distribution of user traffic for service endpoints in different datacenters.
Gumlet - Gumlet is an end-to-end video streaming and image delivery platform