//
Get monthly newsletter intelligence — trends, top movers, new opportunities
Newsletter Insights — advertising rates and audience data for 35K+ newsletters
Browse all →Track A World of 8 Billion Newsletter's growth
Get notified when subscribers, engagement, or pricing changes
Platform Portability
Uses Substack subdomain (jennifersciubba.substack.com). Migrating would require subscribers to re-subscribe at a new address.
Custom domains let newsletters switch platforms without losing their audience.
Are you a newsletter creator? Get verified insights →
How sex, death, and migration shape our world.
Data updated 2 months ago
No posts found. Visit archive →
Track CPM rates as they change
Start tracking — freeWe don't have enough growth data for A World of 8 Billion Newsletter yet. The average Science newsletter has 2K subscribers.
Based on 256 Science newsletters tracked
Engagement Rate
0.00%
Science category average
Quality Score
Engagement vs Science
0.00%category median
vs 64 newsletters in Science
1K places you in the bottom half of newsletters in this category.
Posts per Week
0.0
median: 0.8
Subscribers
1K
median: 2K
Anthrocurious
1K subs
The Neuroscience of Everyday Life
1K subs
Modern Scientism, Cults and the Age of darkness
1K subs
Get email alerts when subscribers drop or spike, when new sponsors appear, when pricing changes, or when publishing cadence shifts. Track unlimited newsletters across your watchlist with the Starter plan.
$29/mo·cancel anytime
See what's includedGet the full whitespace list with each brand's category fit, audience overlap, and recommended pitch order. Plus a comparison of A World of 8 Billion Newsletter vs the top 15 peer newsletters on sponsor mix, growth, and CPM.
Including Epsilon3, Welcome back, Mercury + 33 more.
$300·2-3 working days·refunded if we can't deliver
Publishing Frequency
Unknown
Science Pricing
$5/mo median
Your newsletter: Free
Monetization Readiness
Science newsletters typically start charging at ~2K subscribers
50% of typical monetisation threshold
100% of similar-size Science newsletters have paid tiers
Unlock revenue estimates, CPM benchmarks, and detected sponsors
Start tracking — free