WordPress.org

This plugin displays a 'tag cloud' of all the people in your community who have contributed to our blog by commenting. The more comments someone has made on your blog the bigger and bolder their tag. Thus, it's a tag cloud of community participants for your blog. You also have options to customize the community cloud to your blog and needs. People can see how big your community is in a more visually impactful way, as well as being able to see who the major contributors are compared to the people who just comment once off.