The first unit, called a leaderboard, is an ad unit that fills the entire width of the Web page just below the article page masthead. MSN is using the leaderboard to promote its 8.0 launch.
The second unit, called a brand launch unit, is a sponsorship placement that appears when users first click on a Web page, then it "rolls up" into a standard sponsorship position after a few seconds. The American Plastics Council is currently using this ad unit for a campaign on Washingtonpost.com.
The third unit, called an enhanced billboard, is a large flash unit at the bottom of the page. Covad and Anheuser-Busch are using this ad unit for campaigns.
Washingtonpost.com also offers skyscraper ads, "big box" ads, virtual marketplaces and e-mail marketing.