Workplace Collaborative Learning 2.5 has been thoroughly tested with up to 1,000 concurrent users and a total registered user base of approximately 40,000 users.

已经使用1,000多个并发用户对Workplace Collaborative Learning 2.5进行了全面的测试，并且有近40,000个用户的总注册量。

youdao

Cyber Learning Centre (CLC) continued to increase. It now has a total of 20000 registered users.

网上学习中心的使用人数不断增加，至今已有二万人登记为使用者。

youdao

Twitter doesn't release figures on the total number of registered users, but according to Compete, which offers analytics on Web sites, the site had more than 4.4 million unique visitors as of December 2008.

CNN: Social-networking sites share breaking news

Since the launch of 'LINE' on June 23, 2011, this smartphone app, which allows its users to enjoy free calls and messages, has been used in over 230 countries worldwide, and within approximately a year since its launch, the total number of registered users has exceeded 45 million (20 million in Japan).

ENGADGET: Line messaging and VoIP app adds 'timeline' and 'home' features, throws in new platform for app integration