I'm trying to remember the Whispers that don't entirely make sense in context of the Others. They seem to have knowledge that they shouldn't have, but I'm not entirely sure they shouldn't have it. Correct me if I'm wrong, but didn't the Others know about the guy Sawyer killed in Australia? I seem to remember Ben mentioning it or something.
The most logical rationale these days would be for Smokey or Jacob to be causing it, since they seem to have the supernatural force people once associated with The Others. But who knows?
... following that train of thought ...
Ben said that Jacob never "deigned" to speak to him. So, how did Jacob inform Ben of these events?
Same thing with the lists - how did Ben get the lists?
If Richard was the go-between, between Jacob and Ben, why wasn't Richard the leader?