I am interested in learning more about the X-10 protocol.

I am aware of some sites already Smarthome is particularly good, it seems.

Does anyone have suggestions for user groups or other places to learn? Other places to shop (I see quite a bit of stuff on Ebay)?

Words of wisdom?

What about that Insteon protocol that Smarthome is so keen on?

TIA.

bibere usque ad hilaritatem