TL;DR
Add a search box to the map screen.What ?
People could find hard-to-spot ores (especially in low resource or modded games) more easily with a search box, which would be one possible solution to this issue: viewtopic.php?f=182&t=54776It could highlight the resource(s) all at once the same way they are currently highlighted on mouse-over.
Bonus: The search could find machines with a certain recipe set, making it easy to find automation and learn / remember the layout of a factory. Again, more helpful in modded games, but even in vanilla people can end up asking "Where is the automation for this thing?!"