NotNews! is a Chrome extension developed by sherah that helps users identify questionable news sources while browsing the internet. This free extension is categorized under Browsers and falls under the subcategory of Add-ons & Tools.

The main purpose of NotNews! is to alert users when they are on a website that has been flagged as a questionable news source or when they are about to visit such a site from their Facebook feed. This extension is based on the research conducted by Melissa Zimdars, an assistant professor of communication & media at Merrimack College, who has identified various websites as "fake news" or unreliable sources.

NotNews! provides a convenient and reliable way for users to distinguish between real news and potentially misleading or clickbait-y articles. With the recent update, the extension now also displays the reason for a site's categorization as "fake news" if one has been provided in Zimdars' research. Additionally, NotNews! has added more questionable source URLs and Facebook hover-over warnings, inspired by BSDetector.

With NotNews!, users can navigate the internet with more confidence, being aware of the credibility of the news sources they encounter. This extension is a valuable tool for those who want to stay informed while avoiding unreliable or misleading information.