Theres a really interesting list of some on wikipedia - <a href="http://en.wikipedia.org/wiki/List_of_emerging_technologies" rel="nofollow">http://en.wikipedia.org/wiki/List_of_emerging_technologies</a>
I'm really enjoying developing software for wireless sensor networks. It's amazing how much you can do with 10KB of RAM (that's including RAM for the operating system too).
ngx/mod_pagespeed, because it implements best practices without interfering with developer workflow.<p>Also the QUIC protocol, gotta save round trips... Hope to see it more widely-implemented.
To put it simply: containers. Mostly because they are gaining a lot of traction and their use cases seem to be molding a whole new concept of our technology stacks.
pretty excited about digital manufacturing - I think instead of 3d printers in every home we'll be able to eg. Scan your foot, upload, and get a shoe that fits you exactly.