Searching the forums for “tag cloud” should yield a few results. @gerbertdelangen’s suggestion works well if you don’t need interactivity. If, however, you want to execute a workflow when a tag is clicked, then here’s another approach using a RG.
Your example is gorgeous sudsy. One minor thing, with a little creativity you can make the multidropdown pretty interactive. No where near as interactive as the RG but usually enough for a tag cloud.
It is actually an input element, so just install the plugin, add it to the page and use regular actions like create or make changes, also it is possible to use the event “an input’s value has changed”. Unfortunately it is not possible to have a different color per tag, but for that your solution can be used.
Thanks a lot @gerbertdelangen and @sudsy for your answer. @sudsy, your solution works perfectly. @rpetribu changing the scroll direction doesn’t solve the problem.