AOL Advertising (formerly Platform-A) offers a host of digital marketing and advertising services including display, video, mobile, contextual, and search marketing. Its sponsored listing network allows advertisers to target an ad's placement, whether it be by site, section, or page. Clients have included T-Mobile USA (advertising its G1 phone), FreeCreditReport.com, and TurboTax. Other AOL Advertising businesses include ADTECH (online ad serving), buy.at (e-commerce marketing), and Third Screen Media (mobile ad serving). Owned by AOL, the company operates from about 20 offices in the US, Europe, and Japan.