Newsletter Insights — advertising rates and audience data for 45K+ newsletters
Browse all →Platform Portability
Uses Substack subdomain (hollykorbey.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 →
Reporting, tools and resources on the science of learning.
Data updated 4 months ago
The Bell Ringer hasn't published recently
Last post was 4 months ago. Growth, revenue and CPM projections assume ongoing activity, so they're hidden until posting resumes.
800 paid
We don't have enough growth data for The Bell Ringer yet. The average Education newsletter has 1K subscribers.
Based on 401 Education newsletters tracked
Engagement Rate
0.00%
Education category average
Quality Score
Engagement vs Education
0.00%category median
Score Breakdown
vs 62 newsletters in Education
8K places you in the top 25% of newsletters in this category.
Posts per Week
1.1
median: 1.0
Publishing Consistency
75/100
median: 65/100
Subscribers
8K
median: 1K
| Public |
| The blind man's theory of the "science of math"Why don’t people see the parallels between the science of reading and math?Apr 10, 2026 | Subscriber-only |
| Inside England’s phonics revolutionOn the 20th anniversary of the Rose Report, why England’s phonics program matters nowMar 20, 2026 | Public |
| Public Notice #4Why students got better at math after a reading intervention, Bell Ringer summer school announcement, brewing tech backlash, moreMar 18, 2026 | Subscriber-only |
| Open thread: Math fact fluency Do you test student speed and accuracy on math facts? Are you required to?Mar 10, 2026 | Public |
| My view: What linguistic phonics looks like in the classroom Guest writer Elana Gordon shares an in-class exampleMar 6, 2026 | Public |
| The phonics warsTwo approaches to early reading, the science of learning and what happens nextFeb 20, 2026 | Public |
| Public Notice #1News bites, what to read and listen to, learning opportunities, how to think about the science of learning in the worldFeb 17, 2026 | Public |
| Announcing "Public Notice" A "talk of the town" column for the teaching and learning communityFeb 10, 2026 | Public |
| "I was the highest-performing teacher in Colorado. No one noticed."Special guest essay: one former teacher reflects on what happened when he moved from praise to proofFeb 6, 2026 | Public |
Mr Salles Teaches English
9K subs
Alexander Russo's The Grade
9K subs
Lucy Mailing, PhD
7K 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 The Bell Ringer vs the top 15 peer newsletters on sponsor mix, growth, and CPM.
Including Dell AI Factory, Carnegie Hall, Replit + 30 more.
$300·2-3 working days·refunded if we can't deliver
Publishing Frequency
Previously Weekly
Inactive — last post 4 months agoUsually publishes Fri, Tue
Education Pricing
$5/mo median
Above average(+20%)
Monetization Readiness
Already monetizing
100% of similar-size Education newsletters also have paid tiers
Unlock revenue estimates, CPM benchmarks, and detected sponsors
Start tracking — free