TripSay.com is a fun tool that lets you rate destinations around the world, then offers trip suggestions based on the places that like-minded travelers enjoyed.
What's hot: I loved getting travel recommendations for cities I've never heard of in countries I've yet to visit. To make TripSay work for you, just start marking places you loved or hated, click "proceed" and it will match you up with travelers who have similar tastes. You also get a list of top 5 destinations that are a good fit and three places to avoid. I liked looking at the city recommendations for similarly matched travelers. If you want to leave a message for those travelers, go to their profile page and, akin to Facebook, you can write on their wall.
What's not: There are not a lot of locations when you first look at the rating map or even jump to a specific region. I had to keep zooming in to find specific cities or destinations, whether they were small, like Italy's Cinque Terre, or even well-known, such as Amsterdam. That made the rating process slow and annoying. I wished for a text-based list of cities in the profile page and the ability to quickly mark "love," "dislike" or "best place ever." Another downside: My ratings didn't stick on the map, and I had to remark them to keep my list full.