Unlimited Criminal Checks - Unlimited Criminal Checks is a criminal records database that provides you with instant access to unlimited criminal check reports.
Pragma - The home base for Ethereum developers.
Jailbase.com - Jailbase.com is a database to get information about arrested persons, country mugshots, and jail inmates that can be used to curb crime and make communities a safer place to live in.
Blockbutler - Real-time transaction notifications for the blockchain
CheckPeople - CheckPeople is an all in one people searching software that provides you with information about email addresses, phone numbers, social media data, and contact information, and much more.
CryptoNotify - Receive transaction notifications of any BTC or ETH address