I've been starting to see a bit more people offering "Google Map Citations" for maps optimization online. Reading through different pages from providers, there isn't THAT much information out there about it. Some people are offering "100" to "5000" Google Map Citations which supposedly increase rankings in the 3-pack. I still don't understand what it is or the process behind it.
Does anyone have any experience with this or have a link to a resource that explains in detail what this is and how it works?