Newsletter Insights — independent newsletter & sponsorship data across 32K+ newsletters
Browse all →A dedicated space for exploring the books and ideas that shape our world.
Enter your email and we'll connect you with this newsletter.
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 includedBig Think Books's metrics, benchmarks, and sponsor data in one document
23K
Top 10% in Culture
substack
Culture
+2.5%
0.16%· ~37/post
(comments + likes) / subscribers
vs 0.01% category avg
Bi-weekly
0.6 posts/week avg
Free
Category avg: $5/mo
3223
newsletters in Culture
Top 10% in Culture
out of 3223 newslettersPublishing Frequency
Bi-weekly
Last published Mar 26, 2026
0.6 posts/week avg