AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Progress Sitefinity is a content management system (CMS) that you use to create, store, manage, and present content on your website.