beeender

This is a similar plugin with WP-Cumulus (https://wordpress.org/extend/plugins/wp-cumulus/) but implemented with HTML5.
This plugin requires the modern browsers which support HTML5.

Cumulonimbus

Cumulonimbus allows you to display your site's tags on the surface of a rotating sphere.

This plugin enables you to include questions posted on your Qhub account within your WordPress blog. Related posts are included as a customizable formatted list within your posts or as customisable widgets within your sidebar.
More in-depth documentation can be viewed within the HelpDoc.txt included with the plug-ins files.

Qhub WordPress Widget

Show related Qhub questions to your posts and pages, through widget or in post inclusion.

Cumulonimbus vs Qhub WordPress Widget