With the introduction of the Spokeo version 4 by the California based Company and ZabaSearch continuously providing personal information to searchers using the internet brought concerns to the law enforcement.

It was confirmed that this social network aggregator site is gathering data, personal or public, from an individuals not only with social networking sites but also with other sources that could contain mailing list, real estate listing and even credit information

Source: http://www.fiint.com/3131/spokeo-and-zabasearch-facing-privacy-issue/