Shachaf writes: xmonad, the tiling window manager written in ~1000 lines of Haskell, has recently released version 0.7. Notable improvements include GNOME support and, as always, many new contrib modules (the contrib library is more than 7 times the size of the window manager itself). Make sure to ask the friendly community in #xmonad at irc.freenode.net if you have any questions!
Shachaf writes: XMonad, a tiling window manager written in under 1000 lines of Haskell, recently released version 0.4. New features include a rule system, user-specified workspace tags, and serialisable layouts, as well as many new extensions (the contrib library is several times the size of xmonad itself). See a guided tour or just get started; make sure to/join #xmonad on irc.freenode.net.