[crystalPalace]

There is a large market for maintaining legacy COBOL, SNOBOL, and various esoteric assembly codebases. Additionally APL and its derivatives are not entirely dead.

[protomyth]

SNOBOL should be looked at, if for nothing else, for its string handling (add a brief look at Icon right afterwards). I would have killed to take APL in college, but despite having to program on an IBM 370 mainframe, no classes were offered. I'm still a little ticked.

[lokedhs]

It's never too late to start playing with APL. I started around the time GNU APL was released (a few years ago), and I'm having fun with it.

I also ended up writing the Emacs integration for it. Please give it a try.

[protomyth]

I have over the years played with it, but I was rather annoyed that having to put up with all the disadvantages of using an IBM 370 that we didn't get some advantages.

[ktRolster]

There's a nice overview of APL here: http://www.zerobugsandprogramfaster.net/essays/5b.html

[zeckalpha]

I've been interested in getting into this market. Can you point me to these jobs?