Open Educational Resources (OER) and Open Educational Practices (OEP) have the potential to transform and positively impact individuals, institutions, and society. As educators, we have a unique responsibility to explore opportunities and possibilities afforded by openness enabled by current technologies to reimagine and reshape current educational reality and provide a more hopeful and equitable future for all. EdTechnica is an openly licensed living encyclopedia that provides background information on central topics and theories in the field of educational technology. As an OER, EdTechnica extends the 5Rs of openness—retain, reuse, revise, remix, and redistribute by also attending to the 3Rs of social justice—recognition, representation, and redistribution—bringing about a responsive product that reimagines what encyclopedias should be. Additionally, the governing board enacts principles of openness in its practice, striving for OEP in all its activities. This article explores how EdTechnica promotes knowledge creation and academic discourse by attending to key principles of openness in terms of ensuring accessibility, flexibility, justice, and sustainable generosity. Specific examples of OER/P in the EdTechnica context offer an insight into our practices and ambitions to improve the current educational landscape, illustrating what is possible at the intersection of justice, hope, and educational technology when we strive for openness and are guided by the values of sustainable generosity and sustainable improvement.