Corpora and Language Teaching is a topic that I am very interested in. I am
working on a program "MonoConc for Windows" that I hope will be used by
language teachers. (So I also have a commercial interest in this topic.)
MonoConc is described briefly on:
http://www.nol.net/~athel/athel.net
Some links related to corpora in general and bibliographic references on
corpora and language learning can be found on:
http://www.ruf.rice.edu/~barlow/corpus.html
You might also look at some of the projects using parallel corpora on:
http://www.ruf.rice.edu/~barlow/corpus.html
Other sites to search for:
COBUILD
Corpus Linguistics, University of Birmingham
University of Lancaster and TALC 96
Books are a little hard to get:
1. Tribble and Jones Concordancing in the Classroom is out of print, but
being republished I hear (and I have a some copies)
2. Milton & Tong (eds) Text Analysis in Computer Assisted Language
Learning is produced by HKUST and City Polytechnic of Hong Kong.
3. Flowerdew and Tong (eds) Entering Text. HKUST.
4. Johns, Tim (ed) English Language Research -- Special Issue,
University of Birmingham, England.
Michael Barlow