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.
PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.
Quantcast Measure is an audience insights and analytics tool.