The "Email a friend" link is certainly one way to do it. It requires you to type or copy/paste the address(es) of the recipient(s) into the form.
Another approach that uses your own e-mail program is this:
Find the little document icon to the left of the word "Posted:" near the date of the post. That icon represents a link to the message it accompanies. You can copy the link and mail it to your friend and when they click on the link in the e-mail, their browser will open the specific message you linked to.
My browser (Camino on a Macintosh) copies the link when I ctrl-click on the icon, then select "Copy Link Location" from the popup menu that appears.
Then I can open a new e-mail message, paste the link into the body of the message, and fill in the address with the support of the e-mail program (I typically only have to type one or two letters of each address to get the e-mail program to find it and fill it in).
hoping this is helpful...
Whether you think you can or whether you think you can't, you're probably right.
Weight Loss Through the Magic of Calorie Density: http://wp.me/p1utH8-v