The SlotFee Index
94 listings
- AAll Things PMWeekly marketing sponsor — $11 for 6,300 readers
- Alley NewsWeekly ai & machine learning sponsor — $200 for 13,000 readers
- APIs You Won't HateBiweekly developer tools sponsor — $99 for 2,800 readers
- BB2B WhalesWeekly sales sponsor — $300 for 45,500 readers
- Big Data News WeeklyWeekly data & analytics sponsor — $99 for 20,500 readers
- BlueprintMonthly software engineering sponsor — $334 for 3,700 readers
- Business Analytics ReviewWeekly data & analytics sponsor — $1,250 for 650,000 readers
- CCloud Native DevOps NewsletterMonthly cloud & devops sponsor — $392 for 5,000 readers
- Cloud Security GuyWeekly cybersecurity sponsor — $100 for 2,000 readers
- Construction Equipment Guide NewslettersWeekly sales sponsor — $460 for 35,000 readers
- Consumer StartupsWeekly marketing sponsor — $1,750 for 45,100 readers
- DDaily ZapsDaily ai & machine learning sponsor — $500 for 70,000 readers
- Data ElixirWeekly data & analytics sponsor — $1,475 for 45,000 readers
- databeatsBiweekly data & analytics sponsor — $500 for 3,500 readers
- Deep EngineeringWeekly software engineering sponsor — $300 for 35,000 readers
- DevOps BulletinWeekly cloud & devops sponsor — $1,000 for 16,000 readers
- DTC Growth NewsletterWeekly ecommerce sponsor — $1,500 for 12,000 readers
- EEmbedded Finance ReviewWeekly finance & fintech sponsor — $800 for 1,700 readers
- Entra.NewsWeekly cybersecurity sponsor — $600 for 12,000 readers
- FFailoryWeekly developer tools sponsor — $450 for 33,000 readers
Find the right audience
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Compare the numbers
See each publisher’s public audience size and primary sponsorship rate.
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SlotFee Guides
SaaS Newsletters to Sponsor for B2B Advertising
Looking to reach SaaS founders, operators, marketers, developers, and revenue teams? These sponsor-ready newsletters are relevant for B2B software companies promoting tools for growth, product, engineering, sales, marketing, and business operations.
- #B2B SaaS
- #Revenue Operations
- #SaaS
- #Product-Led Growth
SlotFee
Newsletter Directory: Find and Compare Sponsorship Opportunities
A newsletter sponsorship directory helps advertisers find publications that accept paid placements, compare audience fit and rates, and book directly with publishers. Learn what to look for before choosing a newsletter sponsorship.
- #Newsletter Sponsorship
- #B2B Advertising
- #Media Buying
- #Direct Booking
SlotFee
Newsletter Sponsorship Pricing: Flat Rates, CPMs, and What to Compare
Newsletter sponsorship pricing is usually sold as a flat fee, CPM, CPC, or multi-issue package. Learn how each model works, what affects the rate, and how to compare B2B newsletter placements before booking.
- #Newsletter Sponsorship
- #B2B Advertising
- #Media Buying
- #Direct Booking
SlotFee
Advertising in Email Newsletters: How to Buy B2B Sponsorships
Email newsletter advertising lets B2B brands reach focused professional audiences through paid sponsorship placements. Learn how to find relevant newsletters, compare sponsorship formats and rates, and book directly with publishers.
- #Newsletter Sponsorship
- #B2B Advertising
- #Media Buying
- #Direct Booking
SlotFee
Do Substack Newsletters Accept Advertising?
Yes—many Substack writers can run sponsored content, but advertising availability, pricing, placement format, and booking process vary by publication. Here is how to find and evaluate Substack newsletters for B2B sponsorships.
- #Newsletter Advertising
- #Newsletter Sponsorship
- #B2B Advertising
- #Media Buying
SlotFee
Game Development Newsletters to Sponsor
Looking to reach game developers, indie studios, publishers, and people working in the games industry? These sponsor-ready newsletters are relevant for game-development tools, engines, analytics platforms, art software, audio tools, marketing services, and B2B products for game teams.
- #Game Development
- #Gaming Industry
- #Indie Games
- #Game Publishing
SlotFee
About the SlotFee Data Index
The SlotFee index is an open, unbloated data terminal built explicitly for growth marketers, CMOs, and corporate media buyers. By mapping out exact B2B newsletter demographics, subscriber sizes, and flat sponsor slot rates on a single screen, we completely eliminate the friction of discovering targeted advertising channels.
We do not operate as an escrow platform, ad network, or campaign broker. Our single utility is providing transparent pricing data and a direct-to-creator booking route—allowing you to intercept high-value business audiences and secure sponsorships without paying hidden platform transaction fees.
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