I don't have a read/review pile. If I am interested in it, I read it as I get it (2 min rule - or at least skim it). If I am not ready to read the whole thing but believe I will need it later, it goes into general filing. If it is junk I throw it out. In doing all of these, I keep in mind some issues like:
- when will I need it (if ever)?
- how fast is the area of study changing?
- can I look it up again somewhere else, like the internet, if it ever becomes critical to know?
If I know when I am going to need it, I will file it. If the area of study is changing too fast, then by the time I get around to needing or reading it, it will probably be out of date anyway. I may as well wait until I need it, then look up the latest research. Many things I know I can find again or find more current information on the 'net, so it does not even get filed.