MinimapMagnify
Very small and lightweight addon that allows you to hold a key to temporarily center and magnify the Minimap. This is useful to pinpoint exactly where anything on the Minimap is located. This could be mining nodes, herbs or an NPC. It is also useful to be able to accurately place a ping (or see where pings are received), or to make it quicker and easier to mouse over the individual blips on the Minimap to bring up the tooltip.
The key to use is bound in the default key binding interface. There is no other in-game configuration.