National Standards for Quality Online Courses -- from iNACOL -- Version 2 from October 2011

Excerpt:

The mission of the International Association for K-12 Online Learning (iNACOL) is to ensure all students have access to world-class education and quality online learning opportunities that prepare them for a lifetime of success. National Standards for Quality Online Courses is designed to provide states, districts, online programs, and other organizations with a set of quality guidelines for online course content, instructional design, technology, student assessment, and course management.