Tooltester.com is a website that provides reviews and tutorials for website builders, hosting companies, live chat tools, and email marketing software, with a current revenue of around $120k per month and has made it into the Financial Times ranking of the fastest-growing European companies (FT1000) two years in a row.

Matt Oney quit his full-time job to pursue his side hustle full-time: an affiliate marketing-based content site called ZenmasterWellness that generates around 80k monthly visits and average monthly revenue of about $40,000 by leveraging SEO and affiliate partnerships.

Founder Manthan Gajjar built his photography blogging platform, pewdoc, as a side hustle project and now generates $1.2K per month by publishing trending photography content for newbies. He shares his process of building a blog on a low budget, gaining traffic through consistency and SEO knowledge, and using social media advertising to attract customers and retain readers through newsletters.

Sweet Science of Fighting, a combat sports training platform with specialized programs and a private community, built by James de Lacey, a Master's graduate in sport and exercise science with over a decade of experience training professional athletes, achieving $8,000/month through current customers, affiliate marketing, and funneling search engine traffic.