Dataset Search - Making it easier to discover datasets. Made by Google.
500 Makers - An updated list of the Top 500 Makers on Product Hunt
Words - Software for improving your english vocabulary.
The Y Combinator Database - The definitive database of YC companies with all the metrics
Medium - Welcome to Medium, a place to read, write, and interact with the stories that matter most to you.
Population Project - Your life in numbers and dates. How long will you live?