Smalltalk is probably absent because they're happy and productive and don't care about other languages. I have to say my Smalltalk years were full of more,"Look what I made!" vs. "Look what I got the computer to do!"
An alternative explanation is that there are no longer any Smalltalk programmers who don't also belong to one of the other groups. :(
Shouldn't Verilog/VHDL be on top? :)
Hehe, good point. How about the soldering iron then? Or the wire-wrap gun?
Smalltalk is conspicuously absent.