Information gathering

readnotify.com
confirm.to
didtheyread
netcraft.com
archive.org
ipaddresslocation.org
pipl.com
zabasearch.com
https://www.intelius.com/
https://www.spokeo.com/
https://www.findoutthetruth.com/
https://www.veromi.com/
https://www.peoplesearchnow.com/
https://www.peoplesmart.com/
https://www.ussearch.com/
https://www.instantcheckmate.com/