If you a) think Google is doing the wrong thing in China
and b) think that, despite the pros and cons, a boycott is
a correct form of protest (both statements reflect my own
views as well, by the way), wouldn't it make sense for you
to boycott Google, in particular AdSense? You are reasonably
well known on the net, and a high-profile boycott by you could
actually do some good.

Of course, you would lose some revenue. That's always been the
argument of those opposed to boycotts.

Put your money where your mouth is!