Yes, I remember mentioning this before.
Anyway, in the UK (normally!) the things we use to connect out hifis together we call phono plugs, which I always assumed was from PHONOgraph - british amps still label the turntable selector/input as phono. They are unbalanced cylinder connectors with a phallic central connector.
We _also_ have type a and type b jacks. Type a are 1/4 inch guitar type leads, and what most people use for general audio - they can be balance or unbalanced (mono or stereo).
Type b jacks are _also_ 1/4 inch but have a slightly connical shape ie the point is narrower. These are also called broadcast or post-office jack as the were originally use in telephone exchanges (run by the post office). These are more expensive than type a and are used in pro-studios in patchbays as they are supposedly more reliable. I think they are always balanced. Not sure though, don't use'em meself.
Then , of course, there is the 1/8 inch minijack! Sing its praises, oh wonderous object.
Does this clarify anything or am I just rambling (again)?
matt