The most effective way of dealing with magazines is to scan their contents tables or indexes, turning directly to interesting articles. If the articles are useful they can be cut out and filed into a folder specifically covering that sort of information. The magazine can then be binned. In this way you begin to build up sets of related articles which may go some way towards explaining the scope of a subject. Information can be retrieved easily and quickly.
Newspapers tend to be arranged in sections.
If you read a paper frequently you can learn which sections have useful information, and which ones can be skipped altogether. By applying an intelligent way of reading newspapers and magazines you can significantly speed the time it takes to extract the information you need from them. News articles are designed to explain the key points first, and then flesh them out with detail. Opinion articles are designed to advance a viewpoint. Here the most important information is contained in the introduction and the summary, with the middle of the article containing supporting arguments.