ContactRescue - Magically get your address book up-to-date and accurate
Product Hunt Leaderboard - The top products, hunter and makers.
Cardhop - The Mac contacts app you'll want to use.
500 Makers - An updated list of the Top 500 Makers on Product Hunt
Clearbit Connect - Clearbit Connect is a free extension that surfaces actionable information on the people who email you.
Maker Rank - Your favorite makers, ranked 👩🎤