1. If you want to email your posts to someone you can make use of the Sharing options. On your dashboard menu, go to Settings -> Sharing. On the "Sharing Buttons" section, there will be an "Email" button on the Available Services area. Simply drag that button to the Enabled services area and save. Now the button should appear at the end of each one of your posts. If you click on it, a box will appear for you to input an email.
There are also some options at the end of the Sharing page (you can, for example, choose if the sharing buttons appear on posts, posts and pages, etc). Here's the support page: http://en.support.wordpress.com/sharing/