Facebook and Twitter have joined a group of media and technology firms wanting to filter out false news and online misinformation, reports Hindustan Times. First Draft News, which is backed by Google, announced on Tuesday that 20 news organisations, including The New York Times, Washington Post, CNN, AFP and so on, will be part of a network that will work to promote best practices for journalism in the digital age. The announcement comes at a time when there is growing concern over the way social networking sites like Facebook filter and deliver news, often allowing misinformation and hoaxes to go through.