* I (nelhage) wrote some [http://stuff.mit.edu/iap/2009/barnowl/slides.pdf slides] for an introduction to customizing/extending BarnOwl.
 * Using BarnOwl's [wiki:BuiltinDocs]
 * Creating custom [wiki:Filters]
 * Setting custom [wiki:Keybindings]
 * [wiki:Plugins]