At some point in the past, tag clouds were the most popular items on a page and they were used to help user find the most used tags. At first they were build in simple HTML or Flash having different animations that captured users eyes. But, with the coming of the HTML5, Flash kind of died and canvas took its place in the animation field.
So, you can now achieve animated HTML5 tags using canvas. TagCanvas can do this job for you and provides also a standalone and jQuery plugin version. Has support for text + images and can be shaped as a sphere, hcylinder or vcylinder. But there is more! TagCanvas provides many other settings for maximum customization and works even in IE (thanks goes to ExplorerCanvas).
Build an animated tag cloud with HTML5 – Example