scr.im - Don't share your email on public sites.

Cryptominded - Where you learn more about cryptocurrencies

Spamty - Spamty is a web service to encrypt an email address and share it on the internet.

Crypto Buyer's Guide - Extensive cryptocurrency buying guide

hCaptcha - Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.

Robinhood - Free stock trading service.