Click and drag the panorama viewer. Mouse wheel to zoom in and out. Use search box to find addresses, or click on the map to select a new location. Each location has a unique URL which you can share.
You'll need Chrome, Firefox 8+, or another browser that supports CORS canvas textures.
Code by @thespite · Built with three.js · Tweaking and optimisations by Mr.doob · Inspired on Paul Lewis' Create your own environment maps article.