Get Deeper for Facebook Audience Insights and Target Hundreds Hidden Interest Groups!
When you type a keyword in the ads manager to find out the interest groups for targeting, by default it will list at most 25 groups. However there are hundreds of hidden interest groups on Facebook. The tool will get them right in front of you, you just need copy and paste them for targeting. Facebook audience insights is a great tool to explore the potential custom audience for your campaigns or to find your competitor's audience insights. However if you want to know whether that page is targetable, you have to copy that name and paste to the ads manager to find out, this tool will display a target icon next to the targetable pages, once you click that icon, it will show the audience size with more information. You can click the icon again to hide the information. It is very handy and powerful tool.