Newsletter Insights — independent newsletter & sponsorship data across 45K+ newsletters
Browse all →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 includedJanna Levin's Higher Dimensions's metrics, benchmarks, and sponsor data in one document
17K
Top 25% in Science
substack
Science
~2x per weekOn pause
Last published Mar 17, 2026
$8/mo
Category avg: $5/mo
236
newsletters in Science
Top 25% in Science
out of 236 newslettersPublishing Frequency
~2x per week
Inactive — last post 5 months ago