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Letterlist – Discover Amazing Newsletters — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Marketing And Advertising →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
inboxcollective.com ↗	69 match 1 shared topics	Inbox Collective \| Together, let's make better newsletters.	en	marketing-and-advertising WordPress WooCommerce	robotsllmsaihumans	emailphone	none
theunlockeoc.com ↗	68 match 1 shared topics	Newsletter Service	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
theuseeoc.com ↗	68 match 1 shared topics	Newsletter Service	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
theworkwitheoc.com ↗	68 match 1 shared topics	Newsletter Service	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
coreupdates.com ↗	68 match 1 shared topics	Core Updates SEO Newsletter	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
incomebloggingguide.com ↗	68 match 1 shared topics	Ghost: The best open source blog & newsletter platform	en	marketing-and-advertising Ghost	robotsllmsaihumans	emailphone	none
corerevenueco.com ↗	67 match 1 shared topics	Home \| Traffic Grid \| Grow your Newsletter or Email List	en	marketing-and-advertising WordPress	robotsllmsaihumans	email phone	none
sponsorlayer.com ↗	66 match 1 shared topics	SponsorLayer — Sponsor Intelligence for Newsletter Creators	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
incentise.com ↗	66 match 1 shared topics	Incentise \| Online Content Discovery Hub	en	marketing-and-advertising	robots llmsaihumans	emailphone	none
sponsorsignals.com ↗	66 match 1 shared topics	Newsletter Sponsorship Intelligence \| SponsorSignals	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
topseofactor.com ↗	66 match 1 shared topics	Posts \| Tony Hayes Daily Growth Signals Newsletter	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
thinkbigdigitalmarketing.com ↗	66 match 1 shared topics	Think Big Digital Marketing - Discover the Advantages of Leasing Equipment	en	marketing-and-advertising WordPress WooCommerce	robotsllmsaihumans	emailphone	none
agencyvista.com ↗	65 match 1 shared topics	Discover The Perfect Marketing Agency for your Business \| Agency Vista	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
6sense.live ↗	65 match 1 shared topics	Discover the Power of The New Marketing	en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
24sevenconcept.com ↗	65 match 1 shared topics	24 Sevenconcept – For all your creative marketing needs	en	marketing-and-advertising WordPress	robotsllmsaihumans	email phone	none
bloggerstree.com ↗	65 match 1 shared topics	Life On The Web, Simplified \| Blox News	United States~ en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
impactof.com ↗	65 match 1 shared topics	Discover the impact of premium .com domains - impactof.com	en	marketing-and-advertising	robots llmsaihumans	emailphone	none
sponsoredtweets.com ↗	65 match 1 shared topics	SponsoredTweets – Twitter influencer discovery tool for marketers.	en	marketing-and-advertising WordPress	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.