Oink is a mobile app that lets you rank things in different places. So instead of ranking a restaurant or point of interest, you can rank specific things at those places. Rose showed an example of one of his favorite places, The Samovar Tea Lounge. On Oink, you can rank the different teas at the lounge, and see how they rank against the other teas there and teas you can get nearby. Everything is based on hashtags like #tea, and each type of #tea is ranked by place or within a geographic radius. You can chose to find the best #teas within 1 mile, 5 miles, 25 miles, etc. And they all show up on a map.
Oink is available here.