There are several ways to build out a fiber broadband infrastructure to homes and businesses. The traditional methods are to use existing utility poles or to trench new fiber conduit along rights of ways. However, other technologies are available to use other existing infrastructure.
Video produced by Google Fiber showing the history of broadband starting with 56k dialup and using cars and their movement to show the benefits of fiber to the home.
Video describing fiber to the home and the benefits compared to other types of broadband. Video was produced by the FTTH Council Europe.