PayPal is an online payment system. http://www.PayPal.com

It is mostly associated with ebay.

A Pay Pal email address is the address you use when you register with PayPal.

When you pay Swapstick via PayPal we are given your email address, we then match that to your SwapStick account. 

If your paypal email address is different from your Swapstick address you need to enter your PayPal address in your SwapStick Profile.

Log in an go to My Home and View Profile to enter your PayPal address.

If you do not want to pay by PayPal, we will accept a cheque for a yearly subscripttion.
There may be an administrative overhead on this, you will have to post the cheque and wait for it to clear. Send us feedback to start this off.