Celebrate Immigrant Founders - A directory of immigrant founders
ContactRescue - Magically get your address book up-to-date and accurate
500 Hunters - Forever changing list of the Top 500 Hunters on Product Hunt
Cardhop - The Mac contacts app you'll want to use.
Passport Index 2016 - View the world's passports and see how they rank
Clearbit Connect - Clearbit Connect is a free extension that surfaces actionable information on the people who email you.