A short trial period will educate you in a hurry on the differences. You can almost as quickly unsubscribe to a mailing list as you had subscribed, subject only to the efficiency of your e-mail delivery service. Joining (subscribing) a list can be invaluable.

A short trial period will educate you in a hurry on the differences. You can almost as quickly unsubscribe to a mailing list as you had subscribed, subject only to the efficiency of your e-mail delivery service. Joining (subscribing) a list can be invaluable. Slide 30 of 80