Always want a tag cloud for your wordpress.com blog? Engtech gives us a Tag Cloud Generator
for your wp.com blog. Runs on Windows, Mac or Linux. It’ll give you
output that you can copy and paste into a text widget or a Page within
your blog. Be sure to read all of the documentation as Engtech goes out
of his way to answer any questions that you may have. There’s also a
list of advanced options for you to try.
And if you’re using regular WordPress, just grab one of the many tag cloud generators that are available.