Campus life

Facebook traces its roots to Harvard, but the social networking company´s culture skews more toward public high school-a good one, to be sure, in an area with good demographics that´s also slightly frayed at the edges. Google, on its sprawling suburban campus, is the smug private school in a world of its own. Both companies provide lavish perks, including free food at all hours, but there are clear cultural differences if you look closely.