We present three digital resources for language pedagogy built on empirical research, all of which are freely and publicly available. The goal is to make the results of current research accessible to students and instructors in ways that are transparent and engaging. These resources strategically focus language learning on items that are most frequent in a language and/or are otherwise not adequately represented in standard textbooks and grammars. All three resources target Russian as a foreign language, but the ideas and architecture are portable to the teaching of other languages.