Your company has started to advertise your product in stores. You're getting more sales as a result. You're announcing this at a meeting. You say:
We're seing our retail marketing efforts really pay off.
business, marketing, meeting, presentation, sales 
You have a blog. It's started to become really popular. A friend asks how it became so popular, but you didn't do any advertisement for it. You say:
It's mostly just spread through word of mouth.
advertisement, blog, marketing, perfect aspect, website, 日本語サポート You organized a conference. You are introducing the first speaker. You have just said the speaker's name, and now you're going to give some information about him:
Tom is an expert on social media marketing.
background, conference, expert, introduction, marketing, presentation, 日本語サポート You are writing a report about a company. This company sells products that a lot of other companies also sell. You are introducing the company. You write:
The fast food market in the U.S. is highly competitive.
adjective, adverb, business, companies, industries, intensifier, marketing, report, restaurants, work You went to a talk given by a business book author last night. You are telling your friend about the event and the speaker. You explain why she gave the talk by saying:
She was promoting her new book.
To "promote" a creative work means to do things like talks, radio interviews, press conferences, and book signings in order to tell more people about your work. Things that people "promote" include:
promote your book
promote a movie
promote your new album
