Since 2004, the annual ECAR study of undergraduate students and information technology has sought to shed light on how information technology affects the college experience. We ask students about the technology they own and how they use it in and out of their academic world. We gather information about how skilled students believe they are with technologies; how they perceive technology is affecting their learning experience; and their preferences for IT in courses. The ECAR Study of Undergraduate Students and Information Technology, 2010 is a longitudinal extension of the annual 2004 through 2009 studies. It is based on quantitative data from a spring 2010 survey of 36,950 freshmen and seniors at 100 four-year institutions and students at 27 two-year institutions; student focus groups that included input from 84 students at 4 institutions; and review of qualitative data from written responses to open-ended questions. In addition to exploring student ownership, experience, behaviors, preferences, and skills with respect to information technologies, including ownership and use of Internet-capable handheld devices, the 2010 study also includes a special focus on student use of social networking websites and web-based applications.