Newsletter Insights — independent newsletter & sponsorship data across 32K+ newsletters
Browse all →A daily newsletter for the intellectually omnivorous, from Noah Brier & Colin Nagy. Edited by Louis Cheslaw.
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 includedWhy is this interesting?'s metrics, benchmarks, and sponsor data in one document
32K
substack
Media
~16/post
avg comments + likes (0.05% rate)
~3x per week
3.3 posts/week avg
$10/mo
Category avg: $6/mo
Publishing Frequency
~3x per week
Last published Apr 14, 2026
Usually publishes Tue, Sat, Thu
3.3 posts/week avg
