Market Share by Top Websites

1 DoubleClick is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Yahoo Ad Exchange is clearly lagging behind, losing to DoubleClick in all segments.

Websites Categories

1 DoubleClick has better usage coverage in more websites categories. Including Business & Industry, Shopping, Arts & Entertainment, People & Society and 241 other categories.

2 Yahoo Ad Exchange is leading in College & University Press.

Geography

1 DoubleClick is leading in most countries, including United States, Russia, Japan, Brazil and 211 other countries.

2 Yahoo Ad Exchange is leading in Tonga.