September 20, 2021

Reference: Statistics: "Your Guide to Who Measures What in the Online Space"

4 companies are discussed:

  • Nielsen Quantcast
  • Hitwise
  • Compete
  • Google’s Doubleclick

Direct to Guide (via AdAge)

About Gary Price

Gary Price ( is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at, and is currently a contributing editor at Search Engine Land.