AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds.
Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.
Clicky is web an analytics tool which helps you to get real-time analysis including spy view.