There’s so much choice available that customers can pick and choose who they buy from and where, when, and how it happens. They want to discover, research, evaluate, and purchase on their preferred channel. Give them that option, and they’re more likely to choose you. That’s the whole point behind the multi-channel approach.
So far, Twitter's advertising team has concentrated on sponsored tweets and variants thereof that appear on Twitter.com and the company's mobile apps. But as the Wall Street Journal reports, Twitter is looking at a new place to put its ads: other websites.