Marketing English - the basics

http://www.businessenglishsite.com/business-english-marketing-sales.html

http://www.onestopenglish.com/esp/marketing/

http://www.eslflow.com/describingproductsandservices.html

https://www.youtube.com/watch?v=44jnm3W1JKU

http://esl.about.com/od/businessenglishvocabulary/a/lx_marketing1.htm