The LinkedIn social network, popular among business people and professionals, has reportedly reached the 50 million member mark.

LinkedIn grew from 45 million registered people in August to 50 million by mid October.

According to recent traffic statistics from comScore , LinkedIn continues to grow consistently in unique visitors.

In September, LinkedIn attracted 9 million unique visitors in the U.S., up from 8.7 million unique visits in August.

However, LinkedIn’s growth is mostly due to increasing international users. LinkedIn grew from 18 million unique visits in July to 20 million unique visits in August – Worldwide.

Half of LinkedIn’s registered users are now international, including 11 million registered users in Europe and 3 million registered users in India. India is now the fastest growing user base for the LinkedIn social network.

Source: LinkedIn.com.