Amazon A9 is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
ExactTarget has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, Shopping, Email and 92 other categories.
Amazon A9 is leading in News & Media, Arts & Entertainment, People & Society, Food & Drink and 88 other categories.
Amazon A9 is leading in most countries, including United States, United Kingdom, France, Spain and 105 other countries.
ExactTarget is leading in Australia, New Zealand, Switzerland, South Africa and 24 other countries.