Floe Project: EPUB 3
Floe provides the resources to personalize how we each learn and address barriers to learning.
Open Educational Resources including Floe have the advantage of being “digital-first.” They can harness the potential of digital delivery systems and digital content to assist in addressing the diversity of learning needs.
These materials support EPUB 3 implementations as EPUB 3 provides semantics suitable for publications. In addition to using HTML 5 semantic markup, you can describe the same HTML 5 markup as being chapters, or as a sidebar.
Detailed information for developers can be found on the Floe project site.