Hey back in Diablo II when I wanted to do some Baal runs with random people I'd make a game and call it whatever and it would show up on a list of games. If I wanted to do that in Diablo III how would I do that? There's no list of online games, just available quests.

As far as I'm aware you join a game for the last current quest and run till you get to the boss. It's not really the same thing but that's what I've been doing.

Yea you just pick the last quest that leads directly to that boss. For example Act2 boss quest almost leaves you on his doorstep.