Newsletter Insights — independent newsletter & sponsorship data across 45K+ newsletters
Browse all →Using data and research to understand what really makes a difference.
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 includedBy the Numbers's metrics, benchmarks, and sponsor data in one document
76K
Top 10% in Science
substack
Science
+0.7%
0.29%· ~217/post
(comments + likes) / subscribers
vs 0.00% category avg
Weekly
0.8 posts/week avg
Free
Category avg: $5/mo
236
newsletters in Science
Top 10% in Science
out of 236 newslettersPublishing Frequency
Weekly
Last published Aug 18, 2026
0.8 posts/week avg