New business ideas: $231K credit card side hustle nobody's touching, he built 350+ AI newsletters (then got acquired), $3K/mo weekend side project (4 years on) πŸ€‘

350+ AI newsletters solo (then acquired)

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Business Ideas Newsletter



Hey, it's Niall πŸ‘‹

A fresh batch of business ideas for you today.

β†’ A credit card side hustle almost nobody's touching (no competition)

β†’ A weekend side project still pays him $3K/month (4 years later)

β†’ A guy who built a newsletter for his grandparents, then it exploded…

Alright, let's dive into the latest batch.

Starting with... this free playbook ($0 to $90K/month in 90 days) πŸ‘‡

Niall DohertyNiall Doherty
eBiz Insider

TOGETHER WITH ZAINITH AGENCY

Free TikTok Shop Starter Guide

For a limited time, get our TikTok Shop starter resource folder, including a case study showing how we scaled from $0 to $90K/month in 90 days.

You’ll also get our creator approval guide plus a sample P&L to better understand channel profitability.

πŸ‘†πŸ€‘

WEEKEND PROJECT

$3K/Month From a 3-Day Wordle Clone (4 Years Later)

πŸ“ KLaci, a Budapest-based dev and movie nerd, writes about a side project he almost killed in its first weekend.

In March 2022, riding the Wordle hype, he built Actorle – a guess-the-actor daily puzzle – in 3 days.

Launch went badly...

I posted on Reddit and a few forums. Two of the top comments were "insanely hard to win" and "literally unplayable", the second one because I'd forgotten to add John Hurt to the database.

I almost killed the project that weekend.

A tiny British humor newsletter featured it next. Then he added the feature that changed everything: a "share your score on Twitter" button.

Virality has to be designed in.

The Wordle-style shareable score grid is what carried Actorle. Without that one feature it would've died in week 2.

Mashable picked it up. Accounts with 10K+ followers started posting their grids πŸ“ˆ

Four years later πŸ‘‡

  • ~10K daily active users

  • ~$3K/month from display ads

  • A small portfolio of spinoffs

  • Very low maintenance

His pitch to other indie devs...

'Build a B2B SaaS' isn't the only indie path.

A low-maintenance daily consumer game is a real business too.

You could vibe-code a Wordle-for-X this weekend – sports, music, anime – using a free public API for the data.

Just don't ship without that shareable score grid 😎

AI NEWSLETTERS

He Built 350+ AI Local Newsletters – Then Got Acquired

πŸ“ Matthew Henderson built an AI newsletter so his grandparents could keep up with their hometown.

Then he scaled it.

By early 2025, his network Good Daily was running 350+ daily local newsletters across 47 states. All AI-driven πŸ€–

One person at the controls.

In July, 6AM City – the biggest US local newsletter publisher – acquired Good Daily and made Henderson VP of Engineering.

😎 He'd added 500K+ subscribers in under a year, with markets as small as Rock Springs, WY (pop. 20K).

It's also reshaping how 6AM City scales.

From a recent podcast, COO Ryan Heafy laid out the math πŸ‘‡

For a quarter million dollars, I can go turn on a city... be live in 90 days and be profitable in two years...

…now I can be up and running in one day and be profitable in two days and be in any city we want to be in.

Pick a small town nobody's covering and spin up your own AI-driven daily digest, monetized via local ads πŸ€‘

TOGETHER WITH MINDSTREAM

200 Ways To Make Money With AI

Turns out, AI is good for more than writing emails and generating LinkedIn posts. This guide is packed with 200+ actionable ways to build income with AI.

Inside you'll discover:

  • 200 curated AI income ideas for beginners and pros alike

  • Easy-to-start opportunities you can launch this week

  • Real world applications for today’s top AI tools

  • AI powered business models built for today’s economy

  • Creative ways to turn trends into revenue

AI is changing how people work and how people earn, far beyond the simple β€œwrite me an email” prompt. Discover the possibilities and download the free guide to start cashing in today.

πŸ‘†πŸ€‘

POINTS GUY

$231K From a Credit Card Side Hustle Nobody's Touching

Colin Stroud spent a weekend learning credit card rewards.

A year later, he apparently cleared $231,000 – on about $100/mo in software, no ads 🀯

He's a rewards consultant. He sits with small business owners, looks at what they already spend, and rebuilds their card setup to earn 2.5–3% back instead of 1%.

His own parents ran their medical practice on a 1% cashback card, spending $40K+ a month. Colin reworked it and saved them over $20,000 in travel.

A contractor dropping $60K/mo on materials earns just $600 back at 1%. The right cards bump that to $1,800.

Colin charges $875, one time, to set it up – recouped in weeks.

The gap nobody's filling: every "points" blog out there is written for travel hackers. Nobody's sitting down with the plumber or the dentist πŸ‘€

He lands clients posting daily on LinkedIn, where this niche has almost no competition πŸ”₯

And you don't need to have visited 60 countries – just know more than your client. A free course at The Daily Drop plus a tool like Seats.aero gets you most of the way there.

Pick one type of business owner – dentists, contractors, restaurants – and become their points guy 😎

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