Immediately I will say this is a script for the 
Greasemonkey extension under 
Firefox and how to make friends with 
Google Reader and 
Twitter . What do we get in the end? As a result, we get our favorite gReader with such a button and a pop-up window

Now more about what 
how to do
We 
follow the link and install the script, then go to the 
page with the specification and read about the message format.
Here I will give a brief translation of the main functions.
The author asks a rhetorical question "How to quickly and easily make this or that news in Google Reader public via Twiter" and he answers: "With the help of my script for Greasmonkey"
Message formatTitle, tag, news address, your notes
')
Basic functions- Tag \ Title \ URL are obtained automatically, which, however, does not prevent you from editing them.
- URL easily turns into tinyURL
- Before exile, count the number of words.
Specification