Ad*Views, Monitor-Plus’ flagship product, provides summarized and detailed advertising intelligence across 16 media. Ad*Views delivers competitive information in standard report layouts, customized layouts and offers many exclusive functions for advanced competitive analyses. A few of the capabilities includes: details on promotional activity, digital snapshots of all creative executions, trending of ad dollars for any of the 210 U.S. markets, and share of business reports. Ad*Views tracks and analyzes commercial units, GRPs, and dollars in a single, easy-to-use system.

Source:
http://www.nielsenmedia.com/glossary/
http://www.arbitron.com/downloads/terms_brochure.pdf