Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
Linkedin Sign-In is an authentication system that reduces the burden of login for users, by enabling them to sign in with their Linkedin account.
MS Word is a word-processing program used primarily for creating documents.
OpenGSE is a test suite used for testing servlet compliance. It is deployed by using WAR files that are deployed on the server engine.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.