A very useful e.book on CALL

http://books.google.com/books?hl=en&lr=&id=OUZ8s8BIpIUC&oi=fnd&pg=PP1&dq=computer+assisted+language+learning+resources&ots=l2tZDf-u5F&sig=TURPaH0MTesDQg_28EBYFfGqz7g#v=onepage&q=computer%20assisted%20language%20learning%20resources&f=false