I've recently created some web based English Discussion topics for Asian businesspeople and my students seem to enjoy them.

The lessons are teachable from a mobile phone or iPad.

If you're teaching English to adults in Asia and perhaps wish to try them in class (all free of course) you can find them at:

lessontopic.com

(you can manually type in the the site address into google if you're concerned about clicking on hyperlinks)

Thanks,

Trevor