How are Ghostery Lite tracker categories defined and maintained?

Ghostery has grouped the extensive list of trackers that it has accrued over years of anti-tracking work into 8 categories: advertising, site analytics, customer interaction, social media, essential, audio/video player, adult content and comments. These lists are constantly maintained by members of the Ghostery team with help from our awesome users. By employing category control, users are able to quickly select their preferred method of protection in their custom settings.