Codester - The marketplace for ready-to-use web development assets
Teachable - Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.
CodeCanyon - Scripts and Snippets From $1 for PHP, JavaScript, ASP.NET, CSS, Plugins, HTML5, Mobile and more
Clever - syncing between education applications for K-12 schools
CodeGrape - CodeGrape is an online marketplace for Themes, WordPress, Plugins, PHP Script, JavaSCript, HTML5, Mobile Apps, Print, Graphic and CSS files.
Claroline - Claroline is a collaborative eLearning and eWorking platform.