I still email occasionally but only when necessary. That's why I said I'm not a regularly user. My point is that I've never used email for friend to friend communication.
I think Twitter and any other social platforms are good for the kind of activism that you stated above.
However for something so revolutionary, it takes more than just being a slacktivist who sits their ass on a comfy chair while doing a 'political reformation'.
I'm not sure how much value certificates have. I just see them as another revenue stream for Zend Corp. I think a quality portfolio (commercial, side-projects, open source) has much more value.
The glider is an "animal" from conway's game of life and has been popularized as a "hacker" symbol for a while, though I don't think it ever caught on in a huge way.
So Google can indirectly generate money off Android.