ExpMeter

This simple AddOn adds a draggable text box to the game UI that indicates your rate of EXP gain. This helps to evaluate different strategies of leveling, e.g. whether skipping a slow part of an instance improves the overall XP gain per hour.  

It shows up to three values. All values represent the average XP gain per minute over a give time period:

• last 30 minutes
• last 5 minutes
• since entering an instance