What's your plan once you're cut off from the internet? A satellite connection?
No, seriously, I'm not sure which one you're talking about (or if you're joking). Iran has had so many revolutions (many named after colors, interestingly).
There was the one that everyone knows about (1979 - 'Islamic Revolution'), but there was also the White Revolution, the Persian Constitutional Revolution, and most recently the Green Revolution.
I have a friend who is Persian and she often jokes that 'this next one had better succeed because we're running out of colors!'
Blocking google or gmail was never in that plan; dangerous social networks, like Facebook, twitter and G+ are all blocked (and have been, for years) of course. But a search engine or mail provider theoretically should be left alone!
To begin with.
Even if the situation is not getting worse per se, they need to turn it around soon while they still have people who remember what it was like before, or they risk significant cultural loss.