This document describes a methodology for measuring the emotional impact of Facebook usage and advertising. It involved 150 Spanish participants aged 18-45 who navigated their Facebook wall on mobile or desktop for 10 minutes. Their emotions were measured using sensors and a post-navigation questionnaire. The study found that: 1) Advertising was integrated into users' feeds and did not negatively impact their experience. 2) Younger users (18-25) had slightly less positive experiences than older users (26-35). 3) Mobile elicited stronger emotions than desktop. Frequent Facebook users also had more positive experiences with advertising.