AngularJS is great. Web Components are better I think though.
Docker has redefined devops in my opinion http://docker.io
GLSL is very cool and something you can even experiment with in your browser using Three.js etc. I believe that real time ray tracing is going to be a thing within a few years http://www.youtube.com/watch?v=abqAanC2NZs http://www.youtube.com/watch?v=V5Y06xkRWio
CoreOS looks very interesting.
WebRTC is a technology that could almost make an industry irrelevant. http://simplewebrtc.com/
Understanding APIs around bitcoin and cryptocurrency in general seems important.
I believe that the internet is eventually going to be switching away from normal named server structures to a content-oriented architecture. http://en.wikipedia.org/wiki/Named_data_networking There are a lot of ways this category of architecture is actually currently being deployed behind the scenes, for example CDNs or bittorrent. I believe that we are going to start using that type of system more and more and eventually we will lose things like the HTTP layer. This may be combined with some of the technologies related to cryptocurrency.
For an example of why we are moving to named data networking, take a look at well.. just about any web application that wants to scale. For example the npm registry. Also consider the issues around privacy with Facebook and the NSA, and the ability for governments to censor or take down web sites or domains.
So any technologies that facilitate things like that, such as more traditional clustered SQL or NoSQL tools, or especially protocols and systems specifically designed for named data networking, will be very powerful. I like the idea of heterogeneous peer nodes that have everything they need built in and can connect to the network on their own.
Another area that is really going to be key is artificial general intelligence. Notice I did not say machine learning. I think look at taking advantage of built deep learning systems like the one IBM has with Watson. Or look for deep learning, autoencoders, hierarchical hidden markov models, hierarchical temporal memory. But most practically for the next few years IBM and Google's (when Google releases it) cloud AIs are going to be game changing for many industries and harnessing them in software will be very useful.
Qualcomm/Brain Corporation and some others also have some neuromorphic chip technologies that could be extremely useful.
Any system that really takes advantage of next gen VR devices like Oculus Rift is going to be interesting.