[vrishabh]

Would be better to have the pop-over on 'onHover' instead of 'onClick'. Ability to turn on/off certain feeds would be good too.

I was working on a similar treemap visualization for the links of my twitter feed though I ended up abandoning the project.

[bmajz]

Definitely agree on turning off some of the feeds. Regarding hover vs. click, that was a decision primarily made because of tablets. I usually visit the site on my iPad and hover doesn't make sense in that context.