Growth Hacking... Geez a buzz phrase for everything.

What's really covered in the idea of Growth Hacking relates to the idea of using a merge of conventional + unconventional methods to rapidly increase conversions + revenues.

This approach works well with everything from supplements to podcasts then anything else you can imagine.

What you're likely really looking for...

Ideas to rapidly increase your conversions + revenues.

Suggestion... Scan Clarity + book phone calls with whoever looks interesting.

Do brainstorming sessions with random people + record your calls.

A single idea may boost your revenues into the stratosphere.

One book you might find useful...

"Free" by Chris Anderson

Pay particular attention to oddball ideas like "Sample Labs".

Also how Jello was able to entice people to use rendered cow cartilage + cow hooves as desert.

This book is full of unconventional approaches of "Monetizing Free" which can be adapted to any business.

Also, the book series...

"Marketing Mistakes and Successes" by Hartley.

Understanding failure, is a great way to initially tool for your success + then continually retool to maintain your success.