- Log-in in Blogger.com where you will automatically be taken to your blog's "Dashboard"
- Click on the "Layout & Page Elements"
- Click on "Add a Gadget" in a place where you want the tag cloud widget to appear
- Scroll down the Basic widgets list to locate and select "Labels"
- Check the "Cloud" box in the labels options
- Click the "save" button
That's it!
NOTE additional features:
- You can choose which labels should or should not appear on the blog (this is useful if you have many labels/categories).
- You can choose to or not to show number of posts per label.
- You can choose to show tag cloud either alphabetically or by frequency of tags appearance.