Sitecore (proprietary, .Net CMS) has had Page Editor, a in page editor, for years now. They've been adding to and improving it. http://www.sitecore.net/en/Pro

Sitecore (proprietary, .Net CMS) has had Page Editor, a in page editor, for years now. They've been adding to and improving it. http://www.sitecore.net/en/Products/Sitecore-CMS/Editorial-Tools.aspx http://www.sitecore.net/en/Products/Sitecore-CMS/Editorial-T...