Professional social network LinkedIn hits 100,000,000 members

Everybody's favourite online resume has hit 100 million members today.

According to LinkedIn, it's growing by approximately one million members per week—a newly founded pace that, if maintained, would see LinkedIn reach 200 million users in just two years (it took eight years to reach this milestone).

The company's increased rate of growth can largely be attributed to more users registering outside of the U.S., which for quite some time comprised the overwhelming majority of LinkedIn users, but now makes up less than half.

However, the company did reveal that a majority of its members do not visit the site on a monthly basis, although this isn't as crippling as it would be for Twitter or Facebook-style social networks. Still, it's likely they're devising tactics to keep users logging in more often.

LinkedIn aims to raise $175 million in an IPO this year.