Having said that, the problem all along has been how to take all of this growth and turn Twitter into a service that generates revenue. It has always been free to use, but like any company, Twitter’s objective is to make money. Enter “Promoted Tweets”, Twitter’s new advertising program. It’s very similar to Google Adwords. Advertisers bid on keywords and when a search is done on Twitter, triggering one of those keywords, an ad will be shown at the top of the results page – at least in phase one of the rollout. Only one promoted Tweet will be shown on the search results page.