[lukesandberg]

sharing is already opt in on Google Reader. So you would have to click "share" and then (most likely) select a circle, there will probably be a default circle but it won't just start spamming G+ whenever you read an article

[omellet]

I realize that. The problem is that they block things by URL in whatever web proxy they use, and if content for Google Reader is coming from a blocked url, it's not going to work for me anymore.

It works both ways; I can actually send mail from my Gmail account via Google Reader, even though they block Gmail. I can't read it, of course, but it's a bit of a hole in their security plan.

[lukesandberg]

Who is they? are you worried about not being able to access reader anymore because access to G+ may be blocked? That is interesting. Do you have trouble with the new share box on google search because it is a G+ product? Where are you from?