Today, I have compiled a list of some amazing and free tag cloud widgets for wordpress. You can free download these widgets and install them in your wordpress blogs. While compiling this list, it’s always a possibility that I missed some other great resources. Feel free to share it with us.
You may be interested in the following modern trends related articles as well: Best Radio Plugins for WordPress, Great CSS Tools and Resources, WordPress App and Software Themes and Free WordPress Donation Widgets.
1. Ultimate Tag Cloud Widget
This plugin aims to be the most configurable tag cloud widget out there, able to suit all your weird tag cloud needs.

2. Categorized Tag Cloud
Categorized Tag Cloud is a free plugin for WordPress, developed by the While true.it staff to generate a cloud with the website’s most used tags, in a sidebar widget.

3. Evolution Sidebar Box
Creates a new and simple to use widget that adds a sidebar box with recent posts, last comments, categories, popular posts, a tag cloud and the archives to the sidebar.

4. SEO Tag Cloud Widget
SEO Tag Cloud Widget displays the tag cloud in a SEO-friendly way, using a search engine optimized html markup.

5. Tag Groups
This plugin enables you to organize tags (or categories, or custom terms) in groups. The group membership is saved in the native WP table field term_group.

6. AffiLinker Affiliate
The idea of AffiLinker WordPress Plugin is to automatically convert the given keywords into interactive + profitable Affiliate Links that your visitors Love-To-Click.

7. Post Tags and Archives
Post Tags and Archives makes it easy to add Tag Clouds or Archives to posts and pages via shortcodes.

8. ILWP Colored Tag Cloud
Displays a configurable colored tag cloud as a widget, or in your template, or both.

9. Colored Tags Tag Cloud Widget
Colored Tags Tag Cloud Widget gives you a widget with colored tags.

10. Configurable Tag Cloud
The best new feature in WordPress 2.3 is the integration of tagging into the core of WordPress. However, the tag cloud widget & functions that are included leaves a lot to be desired.
