I love Google Reader and have been getting more into Pinterest. I use Google Reader to read all the blogs that I subscribe to. The problem is that when Pinterest first came out there was no support for Google Reader. I never really looked into it again, until recently. I just found a Bookmarklet that could pin through Google Reader. Here is the link /https://foundthis.co/bookmarklet/. Now I can read and pin all at once! Yay! The bookmarklet doesn't let you choose the image like the pin it bookmarklet, but its better than nothing. I hope this post helps you as much as it helped me.
BTW, if you would like to find me on Pinterest here: http://pinterest.com/thecheesethief/. I also have a button on the side bar, under my facebook button.
Happy pinning! If you also are interested in adding Pinterest Buttons directly onto your blog images, Kevin and Amanda have a great tutorial.