If you want to manufacture your own greeting cards for sale, you can do that through Etsy. Etsy is one of the oldest and best-established sites to sell anything handmade or vintage.

Greeting Card Shop 3 helps Mac owners create and print their own greeting cards and invitations for lifeu2019s special moments. Mac Gems By J.R. Bookwalter, DEC 22, 2015 10:00 pm PST.

With Minted, in order to sell greeting cards, you need to enter and win a contest on the site. Minted’s greeting card competitions offer prizes of as much as $3,500 for first-place.