Facebook opened yet another office, this time in Amsterdam.

The new office will put the company closer to companies in the Benelux, the economic union in Western Europe comprised of Belgium, the Netherlands and Luxembourg, in an attempt to gain more advertisers, according to the Dutch Daily News.

It is believed that the Dutch will start seeing more advertisements, local listings, and promotions on Facebook in the future as a result of the company’s new Dutch presence. Like the article stated:

The Benelux division of Facebook will approach local businesses in various ways to advertise on Facebook. The market is big. Advertisers spent 145 million Euros on Internet ads in 2010, according to figures from research agency Nielsen.

Facebook already has four people working out of the new office.

Interestingly though, Facebook isn’t the most popular social networking site in Amsterdam. The social site Hyves, founded in 2004, has more than 10.3 million accounts worldwide and has twice as many users in the Netherlands as Facebook.

But allegedly, Facebook does not consider Hyves as a competitor, probably because Facebook is more popular everywhere else.

There are now about 4.8 million active users on Facebook in the Netherlands; Belgium has 4.5 million Facebook users, and Luxembourg has 235,000.

Facebook also has offices in Dublin, Hamburg, Hong Kong, Hyderabad, London, Madrid, Milan, Paris, Selangor, Singapore, Stockholm, Sydney, Tokyo, and Toronto, all trying to sell advertising in these markets.

As Facebook pushes past the 600 million user mark, continued growth for the social network needs to pick up outside of the U.S. to keep the membership from plateauing, although that might already be happening a bit.

What do you think Facebook’s continued international expansion means for the company?