I've mostly played in singleplayer so far, I really don't know how multiplayer works in general.
-what's the easiest way to join one of these servers?
-how do mods work? what if different players have different mods set up? Say some guy who had the Aether mod installed is on a server and builds a portal, could I go through it?
-anything else that would help me. :/ Most of what I've heard is jargon involving buckets...