Disqus, pronounced "discuss", is a service and tool for web comments and discussions. Disqus makes commenting easier and more interactive, while connecting websites and commenters across a thriving discussion community.
Disqus Commenting Platform
Disqus is an online service that offers a centralized discussion platform for websites. It was founded in May 2007 and operates under the name of Big Head Labs Inc. Disqus was founded by CEO Daniel Ha and CTO Jason Yan. Disqus supports integration with Gravatar, Facebook, Twitter, and other social networks.
In June 2008, the service had over 150,000 registered users and 17,000 communities, which included blogs and websites. As of August 10, 2010, the service had over 13 million registered users and 500,000 communities.
When a user visits one of the websites using Disqus and posts a comment, the comment is submitted to Disqus. If the user has a Disqus account, then it tracks all their comments across the websites that use Disqus. The use of Disqus has raised privacy concerns about the ability to post comments anonymously.
Recently the Wired magazine website, Engadget, CNN, Fox News Channel, and Daily Telegraph have started using Disqus for comments. Disqus allows logging in with a Yahoo profile but requires access to user's Yahoo contacts, status, and updates. Using a Facebook profile requires even more information which is labeled as "basic information" but includes name, profile picture, gender, networks, user ID, list of friends, and any other information users have shared with everyone.
Sites using Disqus display a link and the message "Warning: A browser setting is preventing you from logging in. Fix this setting to log in". On following the link the user is encouraged to reduce the privacy level of their browser by allowing sites to either accept all 3rd party cookies, or at least those from disqus.com.