Javascript? Rails? Djanjo? PHP? ASP? Node? jQuery? Sinatra? iOS? WordPress? Drupal? etc etc etc. (I recognize that some of these are foundations for others).
I freelance using WordPress and have come to know it very well. I'm certainly not a PHP developer, but I'm capable of pulling a nice, functional site together. I know CSS and HTML extremely well, jQuery is coming along. But that's about the extent of it. I can pull together some SQL statements, write enough PHP to string a few things together
So, I end up constantly wondering: where should I spend my time learning to program? Should I just sit down for 6 months in the evenings and learn Rails? Should I focus on Javascript? PHP? iOS?
If you knew HTML/CSS/WordPress today, what do you think would be the best thing to start learning tomorrow?