Another great article from Hanselman on some of the key technologies for 2014. I think its pretty obvious that any modern dev should try and get some sort of Javascript skillset because everywhere I turn in the Software Development industry there is found Javascript in one form or another or some new javascript library everyone is talking about.

http://www.hanselman.com/blog/IfYouHadToStartOverWhatTechnologiesWouldYouLearnIn2014.aspx