Markit On Demand (formerly Wall Street On Demand) is the leading provider of Software as a Service-based market data and financial information solutions and has designed, developed, and hosted content, reports, tools and applications for the financial services industry since 1992. One aspect of the Markit on Demand business model involves the creation of content on behalf of its clients that is displayed on various web sites such as Yahoo! as an advertisement. AppliedTrust has helped Markit on Demand demonstrate its use of online advertising best practices and its compliance with Yahoo!'s advertising requirements. Although this type of audit is not common in the IT industry, AppliedTrust's experience with security standards compliance was easily extensible to meet the unique needs of Markit on Demand.