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, Topsy is clearly lagging behind, losing to DoubleClick Floodlight in all segments.

Websites Categories

1 DoubleClick Floodlight has better usage coverage in more websites categories. Including Business & Industry, Autos & Vehicles, Car Buying, Shopping and 224 other categories.

2 Topsy is leading in Addictions, Alternative & Natural Medicine, Crafts, Gay, Lesbian, & Bisexual and 2 other categories.

Geography

1 DoubleClick Floodlight is leading in most countries, including United States, United Kingdom, Poland, Australia and 203 other countries.

2 Topsy is leading in Angola and Bhutan.