This will be an interesting one, and i'll be looking for the official announcement.
Twitter is ready to roll out retargeted ads fueled by browser cookies, sources confirm. Twitter could make the announcement as soon as tomorrow, expanding retargeted ads beyond the “experimental” phase that started in July. The secret sauce of Twitter’s retargeting is the use of your account as a cross-device identity layer, allowing it to target ads on mobile based on where you’ve been on the web.
Some details of the announcement are hazy. It’s said to be somewhat of a “soft launch” in that all advertisers might not be immediately eligible to buy the ads, and they might not show up to all users. Report: Twitter To Roll Out Ad Retargeting [techcrunch.com]
With tailored audiences you can reach users on Twitter who have shown interest in your brand or your category even away from Twitter. Let’s say a hotel brand wants to advertise a promotion on Twitter and they’d prefer to show their ad to travel enthusiasts who have recently visited their website. To get the special offer to those people who are also on Twitter, the hotel brand may share with us browser-related information (browser cookie ID) through an ads partner. We can then match that information to Twitter accounts in order to show the matched users a Promoted Tweet with the travel deal. The end result is a highly relevant and useful message for the user. Advertisers will continue to receive the same reports that include how many users saw or clicked on an ad, without identifying who saw it or clicked on it.