There are the following sources supported by GN4, that may produce the following content:

•Wire agencies and syndication: produce wire stories, images, audios, videos, and documents

•Correspondents and fields reporters: produce stories or articles, images, audios, videos.

•In-house staff: produce articles, images, audios, videos.

•Advertisement agencies: produce images.

•Internet: produce stories, images, audios, videos.

•Archive: produce stories, images, audios, videos, documents.

•User generated content: produce stories, images, audios, videos.