From Trip Advisor:
Tonight at 7:00pm US Eastern Time, our site will undergo some scheduled maintenance for approximately three hours. During that time, many features of our site will temporarily become "read-only," which will disable any features that write to our databases:
- You cannot submit new reviews, photos or videos
- New forum topics cannot be written (although you can browse existing forum topics/posts)
- You cannot vote or rate reviews or photos
- You will not be able to connect to Facebook during this maintenance period
- Mobile users will be unable to register, write a review or post to the forums
There is no need to report any error messages or unusual behavior you might encounter during this time -- our engineers will be aware of any issues and they will make sure that everything gets back to normal as soon as possible.