Rulings

• The triggered ability is put onto the stack after you have already drawn your card for the turn.2013-04-15
• If Howling Mine leaves the battlefield before it resolves, then the last known tap or untap state of the card is used for resolution.2004-10-04
• It does not trigger at all if this is tapped at the start of the draw step, and it checks this again on resolution.2004-10-04
• The additional draw is separate from any other draw during your draw step. It happens when the triggered ability resolves.2004-10-04