Newsletter Insights — independent newsletter & sponsorship data across 41K+ newsletters
Browse all →
A guide to the creators and stories shaping culture.
Enter your email and we'll send your inquiry to the Newsletter Insights team.
Tell us your brand and audience. We send back 10-15 newsletters matched to your brief, with sponsor history and CPM ranges per placement.
$300·2-3 working days·refunded if we can't deliver
See what's includedThe Substack Post's metrics, benchmarks, and sponsor data in one document
2M
Top 10% in Culture
substack
Culture
0.16%· ~3238/post
(comments + likes) / subscribers
vs 0.00% category avg
Weekly
1.4 posts/week avg
vs 1.0/week category avg
Free
Category avg: $5/mo
1695
newsletters in Culture
Top 10% in Culture
out of 1695 newslettersPublishing Frequency
Weekly
Last published Oct 10, 2026
Usually publishes Sat
1.4 posts/week avg