If you have a Paypal account, click here
You CAN pay by credit card even of you do NOT have a Paypal account.
1) go to www.paypal.com home page
2) select Send Money tab
3) when the screen comes up enter:
TO: aprilleo@springershowcase.com
FROM: your_E-mail_address.com
AMOUNT: in US Dollars
4) select Continue Button
5) when the screen comes up enter your credit card and billing information
6) Select send payment
That's it you did it!

How do I send money via Paypal?
Our authorized email address is aprilleo@springershowcase.com
Our authorized name is The Springer Showcase
If you have a PayPal account, you can send money by following these steps:
1. Log in to your PayPal account.
2. Click the Send Money tab.
3. Fill out the form.
4. Click Continue.
5. Review the details of the payment, including the payment method. To change any information, click the appropriate Change link. Note: If you edit your payment details, the payment method will return to the default method of payment.
6. Click Send Money to send the payment.