I have been quite alot on the site openraid.eu lately. That site allow you to sign up for different raids/achievement runs/transmog runs etc etc cross realm. I think this is completely brilliant as we then wont have to be too dependent on our server. I will keep going to openraid and I guess alot of other people on this forums visit that site too, but in addition to that I would like if you could add a sub forum here on mmo-champion for cross realm stuff.
Not going to happen for security reasons. Wait for Battletags in the next version of Battle.net (most likely MoP) and I'll be happy to support any initiative, but for the moment, I'm not letting people getting hacked even if it's ultimately their own fault for posting their battle.net mail on a public forum.