BuiltWith in the WSJ
⏰ Old Post
This post is over 10 years old - it might be slightly outdated and consigned to the history books.
BuiltWith helped out with this research piece by providing information on what sites had some form of social integration and how just by having connections back to social networks like Google+, Twitter and LinkedIn provides them with an unprecedented overview of a persons online behavior.
View the WSJ Article here.