Full credit for this hint goes to amit_kr, who wrote:
I wanted the ability to do the same thing, and found a much simpler and convenient way. Drag this link (actually a javascript) to your bookmark bar; the content of the link is this line:This has become my first-position bookmark, so I can email URLs with a quick Command-1.Call it whatever (say 'e'). Since this is a bookmark (and not a folder), a hotkey is assigned to it (command-1 to command-9) by Safari.javascript:location.href='mailto:?SUBJECT='+document.title+'&BODY='+escape(location.href)
Now whenever you need to send the page title and URL to someone, just press the hot key, and that's it!! A mail message is created with the title of the page as the subject, the URL as the body, and the cursor active on the "To:" field.
So one could select a part of the webpage, press Command-C (to copy), Command-2 (to compose Mail with URL and title already there), type in the recipient's address, hit tab twice, press Command-V (to paste the selection), and hit send!

