As someone who works in Local SEO, I have always been a huge advocate for the Better Business Bureau (BBB).
Unlike many review sites, including Google, they take the validity of reviews seriously. I do extensive manual monitoring of the data on the BBB and have found they are one of the most reliable sources of local business data on the internet. Like Google, the BBB also doesn’t accept listings using virtual offices or P.O. boxes and aims to represent the “real world.”
Another thing that makes the BBB valuable to business owners is the fact that they use AggregateRating schema on their listings, which earns them gold stars in the search results on Google.
[Read the full article on Search Engine Land.