WetSpot is an addon that will automatically rotate the tracking methods for you at chosen intervals. This includes all tracking types - fish, minerals, herbs, and treasure. It will also rotate hunter and druid tracking methods (humanoids, beasts, etc.).

For example, if you are a herbalist and miner, while riding through a zone you can change between tracking for herbs and then tracking for minerals every 5 seconds. Or if you are a hunter in a battleground, you can switch between tracking humanoids, beasts, and hidden every 3 seconds.

You can choose whatever tracking methods you wish to look for - unknown spells will not be available to you. That means non-hunters won't see the hunter stuff, and non-dwarves won't be able to see the beer treasure method. If you have not learned the spell yet, the option will be disabled. WetSpot also detects when you are in a city, and will disable itself accordingly. When you exit the city, it will turn itself back on. You can access the WetSpot menu from the Blizzard options frame or by typing "/ws" or "/wetspot".

There is also an on-screen bar available that will give you visual information on your tracking and the ability to start/stop WetSpot. You can enable the bar in the options frame. Once the bar is visible, you can left-click it to start/stop WetSpot, right-click to access the options frame, and shift-left-click to move the bar.

To do list:

Localization, LDB plugin, support for repair/mailbox

Original idea comes from the now-defunct addon Spotter. The original author has given up the project (see comments). I took the code, rewrote it into an Ace3 mod, added more options and placed it in the Blizzard options frame.