AtrophyGFour wrote:
The closest you are going to get is Gatherer, which makes notes on your map anytime you tag a node. The Blizz tracking system will still only let you see yellow dots for one at a time, but as you gather more information your map will show icons for your nodes and a O there if it hasn't spawned.
Just to be clear, it technically always shows an O there, simply to indicate that you're close to it. You'll still only see some indication of whether a node has spawned if you're actively tracking that resource. Blizzard has deliberately coded it this way, and it looks like there's little hope of that changing anytime soon.