Rewardful
Rewardful is an affiliate software that allows you to set up affiliate and referral programs with Stripe. It’s targeted as SaaS businesses and is very affordable.
Newsletters
ConvertKit
ConvertKit becoming the leading email marketing provider amongst many of my peers. This service has proven to be very responsive to feedback and is providing the exact features most bloggers/internet hackers need.
Substack
Substack has become a popular service in the paid newsletter space. Publishing is free but they charge 10% once you start adding paid subscriptions.
Social Proof
Testimonial
Testimonial is a tool that allows you to collect video testimonials from your clients and supporters. The service hosts the videos and allows you create a ‘Wall Of Love’ to display on your website. It also allows for reviews via certain third party services.
It makes it so much easier, both for creators and customers.
Shoutout
Shoutout also allows users to create a wall of love, however it focuses on Twitter. The pricing is also more affordable than Testimonial if you will primarily be seeking social proof from Twitter.