inFocus is a handy tool that makes it easy to share a specific portion of a web page. You can click a bookmarklet (best method) in your browser's link bar or paste the URL of the page into the inFocus website. Then select the area on the page you want to highlight. You'll get a URL sent to your clipboard that you can then share using email, Twitter, Facebook, etc.
DISCLOSURE OF MATERIAL CONNECTION: http://cmp.ly/0