I’m a huge fan of Google Reader.
They recently introduced a “Send To” feature to allow you to share items with other users.
The one that was not included by default was Send To GMail !
Try This:
https://mail.google.com/mail/?ui=2&view=cm&cmid=0&fs=1&tearoff=1&to=&su=${title}&body=${url}
Whoops, just noticed there is a big “EMail” button at the bottom of every article that does just this!