For those who are not familiar with the idea of a cloud. The idea is that certain categories/tags that have more entries would appear bigger in font size, somewhat mimicking a real cloud that has big and small puffs 
Did some search on Wordpress Category cloud. There were a few ways to do it, some folks did their own code, some plug-ins that required other plug-ins.
Finally I settled on http://www.mapelli.info/web20/category-cloud-10. The setup was pretty easy. At least now the Categories section is more compact compared to a long list that took up space!
Entries (RSS)