Yandex N.V. announced that it has released a new advertising model, Real-Time Bidding (RTB), for testing by the public. The RTB technology gives advertisers an opportunity to enjoy all the benefits of the bid-based model now implemented by Yandex in display advertising. Real-Time Bidding is an auction-based system for selling and buying ad impressions. Instead of advertisers directly bidding for impressions, the bidders are advertising systems fighting for the right to serve ads from their advertisers. Currently, the participants in Yandex's RTB auction include Yandex.Direct, the company's ad serving system, and myThings, which has become the first affiliate to work with Yandex. The potential number of participants in the RTB auction, both websites and Demand Side Platforms (DSPs), is unlimited. Each time a web user visits a page, the Real-Time Bidding system instantly offers participating advertising systems an opportunity to buy an impression on the page the user is about to view. Advertising systems, in turn, automatically choose the best ad for this particular offer and make a bid. The system chooses the best bidder, and, in result, the web user sees the ad that has won the auction.