AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Blogger is a blog-publishing service that allows multi-user blogs with time-stamped entries.
Open Graph is a protocol that is used to integrate any web page into the social graph.
OpenGSE is a test suite used for testing servlet compliance. It is deployed by using WAR files that are deployed on the server engine.
Quantcast Measure is an audience insights and analytics tool.
Skimlinks is a content monetization platform for online publishers.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.