Where Smart People
Come to Learn Marketing

Good news: You can ditch the hype, flash, and endless marketing tactics. With our approach, you won't need them.

 A letter to the person building a business around their expertise:

Often, the marketing side of your online business can feel like too much to handle. Keystone is the program that puts you back in control. This cohort-based course was founded by Billy Broas, creator of The Five Lightbulbs®, who saw a need to make marketing simpler.

Our participants are smart people. They're consultants, course creators, coaches, speakers, thought leaders, and subject matter experts.

Our participants are not professional marketers. Yet, they need marketing to bring their expertise to the people who can benefit from it. Struggling with overwhelm, pushy sales tactics, and being too "in the weeds" with their topic, our participants find relief inside Keystone. 

This cohort-based course isn't for beginners. You must have an existing business with a history of clients and customers. But if you've already got traction and want to go faster, Keystone can speed up your journey.

Next four-week cohort begins: February, 2023
Price per seat: $5,000

Join the interest list for Keystone by entering your details below. We'll let you know when we're reopening.

When you join the interest list, you'll get a video clip from a past Keystone. It will give you a feel for the program.

What Our Participants are Saying

“I had seen Billy's marketing handiwork in the wild, and that led me to sign up for his Keystone program. I was looking for an additional edge in selling our cohort-based courses and thought Billy's training could help.

We've sold over $75M in online courses over the years, so needless to say, we have high standards when it comes to marketing training.

Billy is the real deal. His approach to marketing is simple, authentic, and powerful.

We're now using his messaging framework to improve our campaigns. If you have the chance to learn from him, take him up on it.”

Ryan Deiss,

Founder & CEO, DigitalMarketer.com and Scalable.co

“I’ve never, in all the years I’ve sold things online, had the quantity or passion of replies I’m getting.

Thanks to Keystone, and The Five Lightbulbs approach, I launched a premium product. I launched in June, and it's now September that I record this.

I've never earned so much from one product. And my customers are happy. They love it.

I'm extremely grateful to Billy, The Five Lightbulbs, and Keystone -- including all of my colleagues in the cohort who really helped me get to here.

I strongly recommend, if you've been selling online for a little while, and you want to juice up your sales, join Keystone, join Billy, learn from him, and enjoy the benefits."

Reuven Lerner,

Python consultant and online educator

“The Keystone Accelerator course was a game-changer for me. Before the course I felt like I was shooting in the dark trying to come up will compelling sales messages and emails for my online course. It took me forever to write a simple email. And then when I finally wrote something I had no way of knowing if it was even the right message for the right audience. Keystone completely changed that.

With the 5 Lightbulb Framework, I felt like the fog lifted on how to write good marketing and sales copy. I can now write compelling emails for my launch quickly, on message, and to my target audience. Billy’s approach to writing sales copy is creative and authentic.

He is an inspiring and generous teacher who can break abstract marketing concepts down into manageable pieces. Instead of dreading my next launch I am excited.”

Gwyn Wansbrough,

Faciliation expert and trainer

“I doubled the price on my course, so I thought, ‘Okay, well it's probably gonna take longer to sell out these 50 spots.’ I sent out the opening cart email on a Monday, and by Tuesday at the same time, it's completely sold out.

Anyone who wants to sell their stuff in a mega authentic way, in an almost Zen master sort of way of selling – I'd highly, highly recommend Keystone.”

Akash Thakkar,

Composer and Video Game Sound Designer

“I have done all the big names from Ryan Levesque to Frank Kern, to everybody else you can imagine.

This simple framework that Billy teaches is a game changer.

In my world, as a business owner, there's before Keystone and after Keystone.”

Christy Brennand,

Founder of More Heart Less Body weight loss program

“So I've done courses, I've done workshops, one-day events. I've listened to TED Talks. I've read books. And I have learned a lot about marketing. Some of these events were run by the gurus of the marketing industry. So my knowledge is vast when it comes to marketing, but they all failed to deliver on the how.

Keystone is the most practical course that I have ever done. It is by far the most non-BS marketing course. We literally walked out with a physical marketing playbook that we could deploy to our databases.”

Mirta Fagundes dos Santos,

Executive Director, ViAGO Limited

Meet the Team

Billy Broas

The Five Lightbulbs®

Billy is a marketer who has worked behind the scenes of some of the top online entrepreneurs.

Tiago Forte

Building a Second Brain

Tiago Forte is the founder of Forte Labs and the popular online course, Building a Second Brain

Some of the clients Billy has advised on marketing

Tiago Forte

Building a Second Brain


David Perell

Write of Passage


Kimberly Snyder



Shivani Berry


Women's Leadership

Rafeh Qazi

Clever Programmer


Khe Hy



Abbi Perets

Successful Freelance Mom


Abhinav Chihikara

10K Designers

Graphic Design

Ben Collins

Collins School of Data

Spreadsheet Automation

Nathan Cole


Violin Instruction

Walid Feghali


Concept Art

Ali Abdaal

Part-Time YouTuber Academy

Business Growth