The New York Times introduced Facebook integration earlier this week, allowing users to more easily share stories to Facebook, and see what stories their friends have already been sharing. It’s using the social plugins that Facebook launched in April, including the Like/Recommend Button, similar to what rivals like The Washington Post have already been doing. The integration is opt-in and merges a user’s existing nytimes.com account with their Facebook network; after doing so, the user will be able to see which Facebook friends have recently recommended stories, and lets the user recommend stories to Facebook directly from nytimes.com. The Times notably chose to use a closed system whereby users will only see activity from their Facebook friends but not from other Facebook users. Part of this feature is also to aggregate the most recommended stories into a feed on the Times’ web site. The New York Times created a FAQ section for users with questions about the new set up.