In 2013 the Hewlett-funded OER Research Hub Project created a bank of survey questions to test eleven hypotheses related to the impact of OER use on teaching and learning. In the two years that followed, a number of bespoke surveys were designed and administered in collaboration with the Flipped Learning Network, Vital Signs, the Community Colleges Consortium for Open Educational Resources, OpenLearn, Saylor Academy, OpenStax, BCcampus, Siyavula, School of Open-P2PU and CoPILOT. Responses from each survey were then combined into a larger dataset to allow for comparison and in-depth examination. The current report, first in a series of three, presents a frequencies analysis of responses from informal learners, i.e. those learners not registered on a course of study at an educational institution.