A command that lets you do things with links (mainly http:// links) written in a conversation.
Sometimes a link is too large to fit in the window's width, so it's cut in half and can't then be clicked.

A /link command could help the user manipulate these links easily.

I see something like this :

/link [number]

Number is optional, it lets the user specify which link he is referring to. If not specified it is 1 and means "the last link in the window". 2 means "The one just before the last" etc.

Command could be:
open: open the link somehow in the default browser.
copy: copy the link in the clipboard

I think this would be the best feature ever.