Use of social networking sites has led to research concerning online behavior and personality. This study uses a model specifically developed to study the shifts in behavior of five defined types of Facebook users over a 5-year period as they exploit the site‟s Timeline feature. Analysis revealed a statistically significant difference in activity among Scrapbookers, t(7) = 7.99, p < .01 and (M = 9.13, s = 3.23) as well as among Social Butterflies, t(7) = 7.13, p < .01 and (M = 7.38, s = 2.92). The t-test found no discernable statistically reliable difference in the Observer category t(7) = 1.53, p > .05 and (M = 0.5, s = .93) nor in the Activist category t(7) = 1.69, p > .05 and (M = 1.63, s = 2.72), or Entrepreneur category t(7) = 1.53, p > .05 and (M = 1.75, s = 3.24).