I agree. One further thing I do with regards to Google Scholar: I add the term "(intitle:review OR intitle:summary)" and that offers only reviews , which are a

I agree. One further thing I do with regards to Google Scholar: I add the term "(intitle:review OR intitle:summary)" and that offers only reviews , which are a good way to understand the key things about a field ,what's established and not , etc. And if I'm interested in medical research , I go into pubmed , they have something called "clinical queries" which offers only reviews and the like, which is even more important in medicine, because of the statistical nature of knowledge there, and complexity of experimentation. Btw, you gave good tips on how to find high quality knowledge, but probably there's more on that subject. Is there some source that teaches that ?