Swapstack

Swapstack is the marketplace that connects newsletter creators with brands wanting to run sponsorships: creators offer their ad space, brands choose who to sponsor, and the platform manages the transaction. A structured way to monetize a newsletter.

Swapstack is a marketplace platform that facilitates sponsorships between newsletter creators and brands. It has two sides: creators register their newsletter with audience data (subscriber count, open rate, niche), create a digital media kit and set their rates for different ad types (primary sponsor, classifieds, link); brands browse the newsletter catalog, filter by category and audience size, and send collaboration proposals to chosen creators. When a deal is completed, Swapstack manages the contract, creative brief and payment, retaining a commission on the transaction. The advantage for creators is access to a marketplace of brands already interested in newsletter advertising, without having to independently find sponsors. The advantage for brands is finding relevant newsletters in one place with transparent audience metrics. Swapstack later integrated with Beehiiv (newsletter platform) to offer direct monetization within the tool.

For newsletter creators with an engaged audience who want to monetize through sponsorships, and for brands wanting to advertise through niche newsletters.

Swapstack is free for creators to use. The platform retains a commission on each completed deal (the exact percentage varies and should be verified on the site). For brands, basic marketplace access is free; advanced features like filtered search and priority access may have separate costs.