The PubML® eBook for­mat (Publishing with HTML) enables beau­ti­ful, rich media eBooks to be deliv­ered where they should be—through your web browser. PubML® eBooks com­bine ele­gant typog­ra­phy with reflow­able, pag­i­nated text, and they offer a “third stream” alter­na­tive to pro­pri­etary book­stores and pro­pri­etary eReader devices.

Read more at: http://theworldsgreatestbook.com/pubml-web-based-ebooks/