Amidst the many, many ways to explore Flickr is TagGalaxy. TagGalaxy prompts you for a tag and then maps its relationship to a solar system of related tags. Selecting a planet will zoom you into the sphere which is populated with photos of the related tag whereupon you can rotate the sphere and zoom into the photos.

Stop reading this blog post and go have fun with TagGalaxy – very creative implementation of the Flickr API.

Thanks to CogDog for pointing this one out.