Earn 100 miles on your Continental One Pass account without leaving your computer. Go here and enter promotion code: A8197 and your One Pass Account number and you will get free 100 miles added to your account. It will probably take about a month for the miles to hit your account.
Note: You are actually registering to receive an email about Continental.com cruises. Informational only. The 100 miles is just a bonus for registering.