Technorati: Technorati is a publishing network on the internet that tracks popular stories and advertises; until May 2014, the site also indexed blogs on the internet. The site was launched in 2002 by Dave Sifry and is based in San Francisco, California. Their name is a blend of the words "technology" and "literati."

Technorati began running its advertising network in 2008. Since then, it has become one of the largest and most popular ad networks on the web, with over 138 million unique US visitors per month. The site's network includes thousands of independent sites, blogs, and publishers.

Technorati used to focus on indexing blogs for search users, but has since stopped due to the growing number of them on the internet. In 2009, the site announced that it would stop indexing non-English language blogs; five years later, they stopped indexing blogs altogether.

In addition to offering publishing and advertising, Technorati also has resources on its website to guide users in a variety of topics. Their articles feature advice on content marketing, advertising technology, website security, startup advice, and other research. While the site's initial goal was to merely index blogs for searches, today it helps sites grow their brands through content creation and advertising.