Wikipedia:
  http://en.wikipedia.org/wiki/Event_loop

Python/Gnome:
  http://developer.gnome.org/gnome-devel-demos/stable/tutorial.py.html.en

PyQt4 class reference:
  http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/classes.html
  http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qevent.html

PyQt4 tutorial:
  http://zetcode.com/tutorials/pyqt4/
  http://zetcode.com/tutorials/pyqt4/layoutmanagement/

Pyglet:
  http://www.pyglet.org/doc/api/pyglet.event.EventDispatcher-class.html

GTK:
  http://developer.gnome.org/gtk3/stable/
  http://python-gtk-3-tutorial.readthedocs.org/en/latest/layout.html

Anchor Layout in QML:
  http://harmattan-dev.nokia.com/docs/library/html/qt4/qml-anchor-layout.html

PDCurses:
  http://pdcurses.sourceforge.net/doc/PDCurses.txt

XTerm Control Sequences
  http://invisible-island.net/xterm/ctlseqs/ctlseqs.html

Kivy
  http://kivy.org/

Urwid
  http://urwid.org/