E-mail is an effective way of doing this, not only because it's comfortable and fast but also because it's easy to cut and paste responses into an analysis table such as the one in the main body of this article. (hbr.org)
If there is any area you don't understand, you may need to go back to the main body of the article for details. (myfinancekits.com)
In the main body of the article two types of links are listed. (moneysavingexpert.com)