By collecting and analyzing data from a variety of government and private sources, they're able to create detailed, informative profiles for every city in the United States. From crime rates to weather patterns, you’ll find the data you're looking for on City-Data.com.
A comprehensive database with over 225+ million scholarly works, 127+ million global patent records, and more than 370 million biological sequences, all with unprecedentedly rich metadata (including citations).
Zippia is a website that helps people discover information on jobs and career paths. They analyze public data sets, millions of resumes, and millions of current job postings to produce comprehensive rankings and profiles of companies.