Lots of Internet sites offer great free e-mail newsletters on topics as wide-ranging as your imagination can soar. Signing up for double opt-in lists is a two-step process that requires you check your mailbox for a confirmation message after entering your email address into the subscription form. This second step is done to verify that you are the owner of the subscribing e-mail address. Some confirmation messages require you to reply to the message (always leave the subject line in tact.) Others ask you to click on a link which opens a browser window. If the link is so long that it breaks onto multiple lines, it might not be clickable. In this case you will need to copy and paste the URL into your browser address bar manually.