Tags are a special way to organize, search and explore photos (yours and others'). Tags are basically keywords or labels that you can attach to your photos, to make it easier to find it later, or to help you make special cross-sections of your photos. You can tag a photo of your brother and his old Fiat 500 with tags like luigi fiat cars (in this case 3 tags, but you can put as many or few as you like to your photos). If you at some point later on wish to find all the photos of cars in your collection, you can click on the tag 'cars' to get the photos with that tag. On your tags page you can see all the tags used on your photos, weighted after how often they're used.
This page is where you find your personal "tag cloud" with all the tags you have used. This makes for an easy and fun way to browse your photos. The tags on this page is weighted so that often used tags are shown in larger font sizes than less used tags.
