In the important United States market the top places for online questions and answers applications are Answers.com, Stack Overflow, ChaCha, and Fixya. Here Answers.com reaches 40.9% of the users with 45.0% of all page views, Stack Overflow reaches 15.4% of the users with 13.9% of all page views, ChaCha reaches 66.0% of the users with 62.4% of all page views, and Fixya reaches 45.5% of the users with 51.4% of all page views. A ranking is calculated based on a combination of visitors and pageviews. On the list of most popular sites in the USA Answers.com is number 70, Stack Overflow is number 124, ChaCha is number 308, and Fixya is number 463.
In the largest market in the European Union, Germany, the leaders for online questions and answers applications are Ask.fm, Stack Overflow, and Stack Exchange. Here Ask.fm reaches 8.3% of the users with 10.1% of all page views, Stack Overflow reaches 2.0% of the users with 1.8% of all page views, and Stack Exchange reaches 1.6% of the users with 2.2% of all page views. A ranking is calculated based on a combination of visitors and pageviews. On the list of most popular sites in Germany Ask.fm is number 73, Stack Overflow is number 217, and Stack Exchange is number 1220.
In Asia, in the upcoming market of China the top dogs for online questions and answers applications are Stack Overflow and Stack Exchange. Here Stack Overflow reaches 3.7% of the users with 3.3% of all page views and Stack Exchange reaches 1.8% of the users with 2.0% of all page views. A ranking is calculated based on a combination of visitors and pageviews. On the list of most popular sites in China Stack Overflow is number 400 and Stack Exchange is number 3817.
In Brazil, the most important market of South America, the two most popular sites for online questions and answers applications are Ask.fm and Stack Overflow. Here Ask.fm reaches 9.6% of the users with 8.0% of all page views and Stack Overflow reaches 3.4% of the users with 3.6% of all page views. A ranking is calculated based on a combination of visitors and pageviews. On the list of most popular sites in Brazil Ask.fm is number 55 and Stack Overflow is number 95.
The most popular in Russia for online questions and answers applications are Stack Overflow and Ask.fm. Here Stack Overflow reaches 2.6% of the users with 2.6% of all page views and Ask.fm reaches 4.4% of the users with 1.4% of all page views. A ranking is calculated based on a combination of visitors and pageviews. On the list of most popular sites in Russia Stack Overflow is number 193 and Ask.fm is number 264.