Finally a clean solution (read: no browser extension) to easily share RSS stories from Google Reader to Google+.

In short, create a custom link in Reader’s preferences with the following parameters:

Name: Google+
URL: https://plusone.google.com/_/+1/confirm?hl=en&url=${url}
Icon URL: https://ssl.gstatic.com/s2/oz/images/favicon.ico

ReadWriteWeb’s article has a nice howto with all the screenshot you need: How To Share Google Reader Stories to Google Plus.