Originally Posted by Sepioth
Nope .. can not do .... unfortuntally 
Alternatively there are addons like gatherer and cartographer that track last known spots. It will place a icon on your minimap as to where a node can possibly spawn. The icon will dissapear and be replaced by a circle based on distance settings. If you have your tracking ability on it will show the yellow dot in the circle. |
Something that could be possible though, is to have such an addon work together with Gatherer or Gathermate and the likes. Have it play a sound when you get close to a place that has a remembered node.
Though you'd only be able to hear sounds for nodes you've already visited, and there would be no guarantee a node is actually there. But it could raise your awareness a bit and at least allow you to glance at your minimap quickly to see if a node is actually there.