I have just discovered that the archive of Business English e-lessons is now searchable by date, level and by topic.
Topic categories include: current affairs / global economy/ technology / environment / office & management…….
As a good Brit, I cannot blow my own trumpet, but this resource is seriously worth checking out!
http://www.businessenglishonline.net/resources/in-company-second-edition-resources/elessons
Business English e-lesson warehouse