AngularJS ("Angular") is an open-source web application framework maintained by Google and by a community of individual developers and corporations to address many of the challenges encountered in developing single-page applications.
Gulp allows you to automate tasks, minify files, compile and build things such as sass and less. It's a very useful tool use in a lot of projects such as Angular and Ionic
Ionic is a platform for building mobile applications (write once, deploy anywhere) on top of Cordova. It offers advantages over other platforms like PhoneGap with it's built in UI components and plugins for quickly bootstrapping mobile applications.
Live Coding Screencasts. Similar to the Twitch phenomenon on watching people live stream their gaming, watch us code on the spot, no edits or filters. Raw programming.
MEAN consists of Mongo, Express, Angular and Nodejs. It's a great stack for web application development as you will be using one language throughout a project. A very useful prototyping tool.
React is one of the coolest JS frameworks around. With incredible performance, reuse and interoperability, React is a strong contender in both web and mobile.