Best Web UI Feature ever

Yelp totally takes the cake for my favorite little bit of Web UI. In their site, they have a map widget in the right-hand column which autoscrolls to stay on the screen. I always find these autoscrolling web widgets annoying -- they slow down the page, and make the UI jumpy. Apparently I'm not alone, because Yelp's widget has a special checkbox on it:



Now that is appropriate UI text!