Option 1.
2. Click on the "My Services" button and login with your email address and password
3. In the top right area click on the "Change Password" link
Option 2
2. Click on the "Gear" icon in the top right of the page and click "Options"
3. Click on and expand the "General" tab and then click "My Account"
4. Click on "Change Your Password" on the bottom of the screen
5. Enter your current password, create a new password and finally click "Save"