I've built VoilaNorbert (https://www.voilanorbert.com) with a friend more than a year ago just for our purpose, and got LifeHacker(ed) in September (2014) with more than 20k visitors in one day.
We decided to re-write it to include a paid service and we now get around 450 € per month that we split together.
Among that, I started selling Prestashop modules on May 14, and now I get around 800/1000 € per month from this.
Getting money on your side project is (imho) the best feeling in the world. You get notifications (email for Prestashop, SMS that I configured for VoilaNorbert) at every sales, and when you receive them, oh that feels great! :)
This lead me to learn something very important : you have to finish what you start. It's my big default, I always stop in the middle. Norbert and the modules for Prestashop was an exception, and now they make money!
VoilaNorbert helps you find the email of a specific person in a company.
Say for example you have the full name of a person (the CEO) and his company's website. You can use Norbert to try and find his email. Using his personal email, you will have more chances to reach him than just using contact@... .
Norbert simply try and check the existence of general combinations of emails (firstname.lastname, f.lastname, etc) until one is found.
Among that, I started selling Prestashop modules on May 14, and now I get around 800/1000 € per month from this.
Getting money on your side project is (imho) the best feeling in the world. You get notifications (email for Prestashop, SMS that I configured for VoilaNorbert) at every sales, and when you receive them, oh that feels great! :)
This lead me to learn something very important : you have to finish what you start. It's my big default, I always stop in the middle. Norbert and the modules for Prestashop was an exception, and now they make money!