The word "source" refers to the origin or starting point of something. It can be where information, materials, or objects come from. Characterized by being the beginning or cause. Full definition
When the variety of sources of news and information dries up to only a few, the result can be that news is treated not so much as information as ideology. (religion-online.org)
Stories are posted daily, selected from press materials provided by hundreds of sources from around the world. (sciencedaily.com)
There are a number of good sources of data, each with particular strengths and weaknesses. (energytrendsinsider.com)