PLEAC language:chapters currently in progress include:

Anthony Borla
    C/Posix/GNU: 1, 2, 3, 4, 5, 7, 8, 9
    C++/STL/Boost: 2, 3, 4, 5, 7, 8, 9, 13
    PHP: 7, 8, 13
    Pike: 7, 8, 12, 13
    Guile: 12, 13
    REXX: 4, 17

Dave Benjamin
    OCaml: 7, 15

Pixel
    Haskell: 3

Jacob Gabrielson
    Common Lisp: 10, 11, 12, 13