doabooks.org
In short: Getting listed on Directory of Open Access Books is free of any published submission fee. Plan for about 45 minutes — there is material to prepare and a review to wait on.
What they ask for: Apply only after your tool operates a genuine OA scholarly-book publishing program, then submit peer-reviewed privacy-tech books.
Apply only after your tool operates a genuine OA scholarly-book publishing program, then submit peer-reviewed privacy-tech books.
Publisher-level path, not a one-off product listing; transparent peer review, open licences, HTTPS publishing site and scholarly books required.
Open the submission page on doabooks.org and complete its form — that is the "Open submit page" link at the top of this page.
Publisher-level path, not a one-off product listing; transparent peer review, open licences, HTTPS publishing site and scholarly books required.
Priority sets the band — this one is later. Cost (no fee stated) and effort (moderate) move it within that band, which puts it in the long tail tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.