Just released Extended Share for Google+ 4.0, and it is back!
Just got accepted back into the Web Store Gallery

With this update, it adds support for +Dalton Caldwell's app.net, so it now has 21 networks that you can share to instead of just Google+. Including Facebook, Twitter, and Pinterest! Other small bug fixes were deployed as well and it supports the new extension security guidelines (manifest 2)

Download from the gallery: http://goo.gl/s8mky
Source code on GitHub: http://goo.gl/hGBd9

This Chrome extension was the first extension made for Google+, it had grew to 120K users, but then it was pulled out http://goo.gl/V0h2m :( Even though it now has 120 users, I brought it back to life on my train ride back home :) 
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