Technorati is a publisher advertising platform that serves as an advertising solution for the thousands of websites in its network. Technorati launched its ad network in 2008, and is currently one of the largest ad networks reaching more than 100 million unique visitors per month. The name Technorati is a portmanteau of the words technology and literati, which invokes the notion of technological intelligence or intellectualism.

In 2016, Synacor acquired Technorati for $3 million.

The company's core product was previously an Internet search engine for searching blogs. The website stopped indexing blogs and assigning authority scores in May 2014 with the launch of its new website, which is focused on online publishing and advertising. Technorati was founded by Dave Sifry, with its headquarters in San Francisco, California, USA. Kevin Marks was the site's Principal Engineer. Tantek Çelik was the site's Chief Technologist.

The site won the SXSW 2006 awards for Best Technical Achievement and Best of Show. It was nominated for a 2006 Webby Award for Best Practices, but lost to Flickr and Google Maps.