Develop server with Node.js or php: yii, Zend, Symfony frameworks
Working with API: youtube, fb, twitter, mailChimp
Development of Wordpress themes and plugins
Setuping your DataBase: PostgreSQL, MySQL, MongoDB
UI based on MVC JS frameworks: React, Angular, Backbone.
3D applications based on Three.js
360 tours based on krpano
Live video web-stream (360 video also)