Social networking sites are becoming hugely popular in the last few years. Facebook, Twitter and MySpace occupy three of the first top twenty positions of the most visited websites around the world. They have enabled large part of online users new ways and new tools of interaction, communication and content available than were never before possible on the web. In other words, people are participating in content creation rather than just consumption. This work seeks to measure the presence of Costa Crociere company within Facebook to evaluate its brand reputation on online users perceptions and assess how the company exploits the Social Network to promote itself. The cruise sector is a kind of vacation that generates a great involvement concerning the life onboard which means an increased sense of community among travelers. This sense of community could be reflected by sharing travel experiences within social networking sites.