The document provides instructions for using the keyword search feature on WhatRunsWhere to gather intelligence on related ads. It explains that entering a keyword will display relevant ads from their database and that searching phrases requires quotation marks. The results can be filtered and are sorted by relevancy or most recent. Viewing top performing ads provides insights into successful designs, themes, and calls to action that could be tested in one's own campaigns. Clicking an ad displays stats to identify common high performing placements.