They had every address (and a few extra!) I've lived at in my life. They had the address I'd stayed at with relatives for 6 weeks between moves. The email address I used to purchase (I use a unique email address per place I give an email to, eg store_name@mydomain.com) stuff from: jcrew, ebags, performance bike. They had multiple sources for address information, including the CRAs, USPS, E-merges (voter registration), Neustar, Alloy Media, and a dozen companies I've never heard of. They had college records from Alloy Media. They had emails for my partner. They had deed information for most places I've lived. They had CLUE information -- all car insurance claims -- for me and for people I've shared car insurance with.
They had spaces for FAA licensing, hunting/fishing licenses, lawsuits, payday loans, watercraft, ATF (gun) licenses and investigations, marriage licenses, and sex offender status.