I'd just like to recommend an excellent site for anyone who wants to improve their business English online.Workplace English Training E-Platform: http://www.workplace-english-training.com/
They have sections for both students of business English and teachers of business English.
For students, there's plenty of free stuff including daily and weekly tips, and podcasts. Serious learners need to take out a subscription.
The member's area is well organised with excellent content.
The English Professor