AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Application Request Routing (ARR) is an extension to Internet Information Server (IIS), which enables an IIS server to function as a load balancer.
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
Pinterest is an image sharing and social media service designed to enable saving and discovery of information.