Newsletter Sponsorship Directory
Newsletters list their topic, audience and sponsorship rates in one place; brands browse free; newsletters pay to be featured.
Economics
- Pricing example
- Free listing; $29 for a 30-day featured spot on a topic page
- Daily math
- 1 featured spot a day x $29 = $29/day; even 2 every 3 days = about $19/day.
- Target if you hit the daily math
- Target: $550 - $900 / month if the daily math is hit
Audience and urgency
Audience: Paying side: independent newsletter writers looking for sponsors. Free side: small brands and startups looking for newsletters to sponsor.
Urgency: Small newsletters struggle to get in front of sponsors, and small brands don't know which newsletters exist in their niche or what they charge. Both sides currently rely on cold emails.
MVP scope
- ✓ Newsletter profile: topic, audience description, subscriber count and open rate with an 'as of' date (marked self-reported), sponsorship formats and prices, booking link
- ✓ Topic pages with filters (topic, language, region, price range)
- ✓ Featured spot via Stripe Checkout that expires after 30 days
- ✓ Brand enquiry form that emails the newsletter (rate-limited)
- ✓ Admin approval queue and report-listing link
Omitted features
- - Do NOT label audience numbers as verified unless you actually verify them
- - Do NOT take a commission or handle sponsorship payments in Day 1
- - Do NOT scrape newsletter platforms to create listings
Suggested stack
- Frontend
- Next.js + Tailwind CSS
- Backend or API
- Supabase + Resend for enquiry emails
- Payments
- Stripe Checkout
- Hosting
- Vercel or Netlify (free tier to start)
Repository metadata
- Blueprint ID
newsletter-sponsorship-directory- Category ID
curated_directory- Monetization ID
featured_listing
Day-one distribution
Channels
- Reddit r/Newsletters (follow rules)
- Newsletter-writer communities on X (Twitter) and Discord
- Direct invites to newsletters that publish a public sponsorship page
Reddit strategy
Share a free sponsorship rate-card template for newsletter writers and invite them to list free.
Cold outreach or directory hook
Invite 50 newsletters with public 'sponsor us' pages to list free, then offer a featured launch week.
Search keywords
newsletter sponsorship directory, sponsor a newsletter, find newsletters to sponsor
One-shot master prompt
Build a "Newsletter Sponsorship Directory" in Next.js with Tailwind CSS and Supabase. Core requirements: 1. Newsletter sign-up (magic link) and profile: name, URL, logo, topics (max 3), language, region, audience description, subscriber count + open rate + "as of" date (shown as "self-reported"), sponsorship formats (primary, secondary, classified, dedicated) with prices and currency, booking/sponsor-page URL. 2. Topic pages /topics/[slug] with filters for language, region and price range; featured listings first with a "Featured" label. 3. Stripe Checkout for a 30-day featured spot ($29); webhook sets featured_until; daily job clears expired spots. 4. Brand enquiry form (brand name, website, budget, message) that emails the newsletter via Resend, with Turnstile and a rate limit. 5. Admin page to approve, hide and remove listings, and a public report form.
Comparable products
Published 2026-10-08.
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