This document discusses LinkedIn and how it can be used. LinkedIn allows users to connect with past and present colleagues and classmates to find jobs or grow their business. It offers different account levels and ways to increase visibility, including improving Google page rank and allowing blind reference checks. LinkedIn groups allow users to connect with alumni and professionals in certain fields or companies. Users can also share knowledge and stay up to date in their industry through LinkedIn Answers. The document outlines several LinkedIn applications and services available to members as well.