The growing trend toward incorporating health information technology (HIT) and patient-defined and patient-generated data into the healthcare delivery system is clear. From funding included in the American Recovery and Reinvestment Act of 2009 to provisions included in the 2010 Affordable Care Act, to the call for inclusion of patient-generated data in Stage 3 meaningful use, HIT implementation is an essential component of federal plans to improve healthcare quality and lower costs. The trend may be clear, but we still need a better comprehension of how broad the range of patient-generated data really is.