Share on MySpace / Bebo ?

Does anybody know where the docs are for the 'share this link with your friends' API on MySpace and/or Bebo? I'm assuming they do have such a feature, but neither their help pages nor Google searches are finding me what I need to know...

A Crude Awakening

This: http://www.dogwoof.com/crudeawakening/film.html

is showing here: http://www.curzoncinemas.com/flash/

for the next two weeks or so. Anybody fancy seeing it?