Publishers offering "Sponsored Email" spots

A sponsored email is a message sent to a publisher's subscribers on your behalf, often as an alert or a branded note. Fantasypros, Freecads and PADI Worldwide sell versions of it.

How it's sold: You book it directly with the publisher's sales team. Fourteen publishers list it, all by email.
What it costs: Most publishers quote this on request, and the usual basis is a flat fee per send.
What you supply: You supply the subject line, the copy, images and a link, and some publishers help write it.
Best for: It suits you if you want to reach a loyal subscriber list with an offer or a story.
Before you buy: Ask for the list size and the open rate, and check how the email will be marked as sponsored.