Social Systems: Can We Do More Than Just Poke Friends? - Georgia Koutrika; Benjamin Bercovitz; Robert Ikeda; Filip Kaliszan; Henry Liou; Zahra Mohammadi Zadeh; Hector Garcia-Molina (CIDR, 2009)

Flexible Recommendations for Course Planning. - Georgia Koutrika; Benjamin Bercovitz; Robert Ikeda; Filip Kaliszan; Henry Liou; Hector Garcia-Molina (ICDE, 2009)

CourseRank: A Closed-Community Social System through the Magnifying Glass. - Georgia Koutrika; Benjamin Bercovitz; Filip Kaliszan; Henry Liou; Hector Garcia-Molina (ICWSM, 2009)

CourseRank: a social system for course planning. - Benjamin Bercovitz; Filip Kaliszan; Georgia Koutrika; Henry Liou; Zahra Mohammadi Zadeh; Hector Garcia-Molina (SIGMOD Conference, 2009)

Social sites research through CourseRank. - Benjamin Bercovitz; Filip Kaliszan; Georgia Koutrika; Henry Liou; Aditya G. Parameswaran; Petros Venetis; Zahra Mohammadi Zadeh; Hector Garcia-Molina (SIGMOD Rec., 2009)