A tag cloud or label cloud for blogger is a visual depiction of all labels used on your blog.You can see a demo of the Label cloud for blogger(blogger label cloud) here on my site. This Tag Cloud Widget was originally developed by phydeaux3. This is a modded version of phydeaux’s Cloud. This is much better than the Blogger’s Default Label Cloud. First of all Go to Your blogger Layout > Page Elements page and add a Labels Widget there..You can Do that using the Add a Page Element Option on that page. After Adding the Label Widget Go to Layout > Edit Html (Do not expand the widget templates for the sake of easy explanation) You will find...
Source: http://www.bloggerplugins.org/2008/06/label-cloud-widget-for-blogger-blogspot.html