A white supremacist on YouTube will tell you all about race and IQ but if you want to read a careful scholarly refutation, obtaining a legal PDF from the journal publisher would cost you $14.95, a price nobody in their right mind would pay for one article if they can’t get institutional access. Academic publishing is a nightmarish patchwork, with lots of articles advertised at exorbitant fees on one site, and then for free on another, or accessible only through certain databases, which your university or public library may or may not have access to. – Current Affairs