The Impresiones OneKey (new to this edition) is an integrated online resource that brings a wide array of supplemental resources together in one convenient place. OneKey features everything you and your students need for out-of-class work, conveniently organized to match your syllabus. An on-line version of the workbook and lab manual is included, along with the complete audio program and an automated gradebook for instructors. Testing materials and other instructor resources are available in a separate section which can be accessed by instructors only.

The Impresiones OneKey content is available in three different platforms. A nationally-hosted version is available in the reliable, easy-to-use CourseCompass platform. The same content is also available for download to locally-hosted versions of BlackBoard and WebCT.