Thanks to a post in Mr. English 101, I found two good links to studies on the importance of extensive reading (also known as Sustained Silent Reading or Free Voluntary Reading). Stephen Krashen, of course, is the person many of us cite, but it’s also good to have other sources demonstrating its success.
Extensive reading: why it is good for our students… and for us, by Alan Maley, is from The British Council, and cites multiple studies.
Extensive Reading: Why? and How? and is another study on extensive reading and ELL’s.
Do you recommend any other good related research sources?