As Black Friday Cyber Monday approaches, consumers are getting into the buying spirit of the holiday season.

But as a business, the hard part is making shoppers aware of your products and offers. While there’s always marketing to be done—on social media, email, and other channels—you can also consider tapping into marketplaces to get your products out there.

Selling your products on online marketplaces lets you access an audience of customers who often start their shopping on these third party platforms. Listing your items on eBay, for example, gives you access to another 171 million shoppers, while Amazon is home to over 310 million active accounts of its own.

However, this doesn’t mean that you should list your products on every marketplace all at once. That’s why we’ve put together this roundup to walk you through some of the marketplaces you can sell on with Shopify and when to consider them.