As a web designer or hosting company it is great to offer professional services to your clients but referral programs are also a good way to make money and provide a better solution.
Most shopping carts will require some type of simple payment solution and there are a variety of merchants out there that can process your payments.
Google is a premier product provider and their merchant services are found on many major commerce websites.
When a customer comes to your site or if it is a site that you designed for someone else even if you use a very popular payment method you may exclude some transactions if the visitor does not have that type of payment account.
With Google Checkout Merchant Referral Incentive Program
If you’re a developer, e-commerce provider, web designer, or any other business that maintains relationships with online merchants, you can earn cash for helping your merchants get up and running with Google Checkout.
Get paid for every merchant you sign up.
In their first year, earn 0.5% of all Checkout sales your merchants process and $25 for each merchant you refer who processes at least $500 in sales and 3 transactions with Checkout.
Earn when you integrate your platform with Checkout.
Earn $1000 for integrating with the Checkout API and an additional $2500 for integrating with the Order Processing APIs.
For More information visit
https://services.google.com/inquiry/checkout_merchant_referrals