Facebook. A fast-growing social networking website, it recently surpassed MySpace in terms of subscribers. In terms of number of visits (1.2 billion in January 2009 alone), this website is No. 1.
MySpace. This website attracts music lovers. From indie bands to professional artists, you can find them here. But since it’s older than Facebook, this website is fast slipping in the ranking. To date, it has more than 250 million registered users.
Twitter. This microblogging, social networking service allows people to send friends 140-character messages, similar to what we can send via our mobile phone’s SMS feature. If we’re going to look at the numbers from compete.com, 54 million people worldwide visit this website every month.
Flixster. A social network site for movie lovers. Enough said. Also a fast-growing site that has over 53 million visitors a month.
Linkedin. People joke that this website is the most formal and “boring” social network out there because it targets professionals wanting to connect with other professionals. But based on compete.com, it has been getting 42 million visitors every month. This is a social network for businesses, too.
Tagged. Tagged you’re it. No, not really but next time you get a spam invitation from tagged.com, then perhaps you’re one of the 39 million monthly visitors to this social networking website.
Classmates.com. It is the first and oldest social networking website for students. It is still getting about 35 million visitors a month.
hi5. This is popular in Angola, Portugal, Cyprus, Romania, Thailand, Central Africa and Latin America. And it’s open to users 13 years old and older. This website has over 9 million visitors and about 80 million registered users.
Friendster. Did you know that a large number of Friendster users are Filipinos? Yes, this social networking website, which has more than 7 million monthly visitors, has over 90 million registered users. It’s popular in Southeast Asia, including Thailand, Indonesia, Singapore and of course, the Philippines.
Orkut. Google’s own social networking website is popular in Brazil, Paraguay, India, Pakistan and Estonia. It has over 67 million registered users and about 5 million monthly visitors.
The list goes on.
It also changes very quickly.
Here’s another list compiled by compete.com.