I'm sure Dries doesn't mind if I borrow his tagclouds. :-) The following lists contain the top 60 tags that I've already used in my posts. The font sizes mark the significance of the given tag in the given context. Eg. a tag with a larger font size in the "What people read about" tagcloud has been read more times by visitors, than the tags with smaller font sizes.
Take a look at this page if you're interested in creating similiar tagclouds on your Drupal-based website.