Now all the links in the feed are converted on the fly to toolbar links (with same base module that absolutizes links and helps to see those images that got corrupted otherwise).
What it means is that target page is opened inside a frame and on the top of that frame there is another tiny frame (36 pixels high at the moment) that contains “share” button, feed item title and a link to the initial link (in case you’d like to get back to where you started).
This toolbar significantly saved my time when I tried to chase stories (to share them) after I clicked deeper into the story which happens quite often.
P.S. some sites (e.g. Make magazine) coded their pages in the way that it detects being opened inside a frame and jumps our of it. I’m sorry to say that this can’t be reasonably avoided and I respect site owners decision to do so. In this case you’ll have to feel the pain and get back the feed item in your reeder to share it until I find some other tricks (like popups instead of toolbar or URL posting – both were given serious thoughts for this or other reasons).