I like to follow the articles and comments at Zero Hedge - there are inside players that hang out there, large industry traders, and you pick up general knowledge over time, especially in the comments section. Another place is Kitco.com, for the metals knowledge, general metals industry knowledge, lots of video interviews from people in the industry, especially miners, prospectors, geologists, etc. Again it's absorbing the info over time to build an overall picture, and to build out your knowledge base. Also, they run the daily price numbers, currency trading, and the cryptocurrency trading. Neither place is dominated by a singular view of any particular economist or businessman - rather it's a collective knowledge of thousands. Lots of highly qualified specialists with unique perspectives.