... Kumar, Jasmine Novak, Prabhakar Raghavan, and Andrew Tomkins. 2004. Structure and evolu-tion of blogspace. Commun. ACM, 47:35–39, De-cember.Amanda Lenhart, Kristen Purcell, Aaron Smith, and Kathryn ... in- terests since they are not always available.770 age and gender. In International AAAI Confer-ence on Weblogs and Social Media. Mark Hall, Eibe Frank, Geoffrey Holmes, BernhardPfahringer, Peter ... have shown that it is possible to predict theage group of a person based on style, content, and online behavior features with good accu-racy; these are all features that are available in any...