Vast amount of material published each day, from sources such as:
- newspapers
- magazines
- televisions
- radio reports
Can be useful, e.g. looking into an historical event.
Above sources unlikely to report anything useful with regards to computing research. If they do, most likely will be reported from academic publication, therefore should go to the source.
Can reference any source. If quality is dubious, must triangulate or state that source may not be reliable.