We all know that Facebook is a voracious tracker your online moves, and specifically, as it's called, off-Facebook activity. At last it's started rolling out its clear history option, but only in Ireland, South Korea and Spain.
It'll be interesting to see the reaction from users on those countries when they see how much tracking Facebook is doing.
One other thing, I find it quite poor that users cannot opt out of this tracking in the first place. The onus is with the user to keep clearing their history. Methinks this'll become a daily chore when it eventually rolls out into other regions.