Selling online is a great way to earn an extra income.
eBay
Selling via eBay has some benefits and some drawbacks, but it is probably the fastest and easiest way to get started on your journey to e-commerce riches.
Paypal
The most common way to receive payment for online transactions is via Paypal.
If you are planning to sell online you might want to get a free Paypal business/merchant account. You can also upgrade your existing account to a merchant account for free.