Tag dynamics

Just thinking out loud: it would be cool to look at how the tags in the cloud swell or vice versa, for example, during the year of the existence of a website, for example, Habra :) And if this is also compared with dates, you can see the dynamics of the development of “interests” chtoli ...

ABOUT! While I was writing, I realized that this can be done in the form of a widget, only he will need to give probably enough permissions ...