Now, when you see a friend’s foursquare check-in on Facebook and want to try that place too, you can click the new ‘Save this Place’ link and save it to your foursquare to-do list for later.
All it takes is one click, and you can do it right from Facebook (the save will appear on your Timeline, too, just like other apps you’ve connected to Facebook).
It’s an easy way to get ideas for future outings, and foursquare can do the work remembering them.
via Foursquare Blog