Market Share by Top Websites

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

2 In terms of market share, Nielsen NetRatings is clearly lagging behind, losing to DoubleClick Floodlight in all segments.

Websites Categories

1 Nielsen NetRatings has better usage coverage in more websites categories. Including Business & Industry, Marketing & Advertising, Arts & Entertainment, People & Society and 130 other categories.

2 DoubleClick Floodlight is leading in Autos & Vehicles, Car Buying, Travel, Accommodation & Hotels and 95 other categories.

Geography

1 DoubleClick Floodlight is leading in most countries, including United States, United Kingdom, Canada, Australia and 118 other countries.

2 Nielsen NetRatings is leading in Italy, Spain, Bulgaria, Greece and 47 other countries.