I'm looking for any spots that I can stand in where mobs "feed" into me, rather than having to run around through a cave or whatnot and waiting for them to respond. Currently I do this in Icecrown where those yellow Fallen Hero's Spirits that run to a focal point and despawn. I like to sit just before that as a bear, and swipe forever. I'm not geared anything beyond a ilvl 223, and I've never dropped below like 95% health. Plus since they're yellow I don't have to worry about aggroing any more than I currently have, in case I run to the bathroom or whatnot, so I don't come back to a dead cow. As it's going I'll just randomly stop hitting swipe to loot then just start right back in. I'm debating even building a button pusher out of legos or whatnot, as I just hit #1 every second.
I like this despite it's not a super high yield. I'd say I make roughly 150G an hour accounting for grays, etc. They each drop between 16-37S. I like it because it's consistent and constant. It's doesn't rely on the fickleness of other players on the AH or trade. It's also an average supplier of frostweave. I didn't pay close attention but I'd guess around 2 stacks in that hour.
The reason for this is I'm evil, and will sometimes play at work when I'm stuck in the IT room all day doing patches or whatnot. I just have the windowed screen shrunk down to like a 4"x6" postcard. I do a lot of fishing this way as well.
So, are there any other of these types of places where the mobs are fed in, and I don't have to run around hunting?