When would you use Insights Finder and Find My Audience? 

• When you're looking to create audience lists similar to the audiences who delivered the best results in your Google video campaign. 
• When you're looking to understand what audience solutions in an existing campaign are delivering the best results. 
• When you're looking to create audience lists that you can immediately apply to any of your Google video campaign. 
• When you're looking to understand who your most valuable customers are on YouTube and how to reach them. 

Answer: When you're looking to understand who your most valuable customers are on YouTube and how to reach them.