Provide all possible means for validating
Social following and interaction doesn’t necessarily correlate to sales but it could be a good indicator of market interest.
One of the most important things to remember here is that you can’t take the number of followers for face value.
In fact, at best, posts received one or two likes/favorites.
You can use a service like Status People to review Twitter accounts for fake followers.
You can use a service like Who Is to lookup information on a particular domain and see when it was registered.