Foursquare continues to refine their website with improvements for non-members.
The latest update is targeted at Places pages. If you share a place you like on social media, your friends would get a link that loads up a feature rich page with loads of information. This works for non-members as well.
Foursquare said:
When you Tweet, post to Facebook, email or text about a place with friends who don’t have Foursquare on their phones, they’ll be linked to a shiny new page showing all the most important info about it. We’ve redesigned the page to highlight great tips and photos (and it still has all the essentials, like address, phone number, and more).