Gitignore.io is a project designed to help develpoers create git templates for their projects. It has a simple intiutive web interface where you can type the operating system, programming language, or IDE's you use and then the site will generate a template file. The project also has a command line interface that allows a user generate the same type of template programatically.
This project was built with a lot of help from the open source community, my goal is that whomever takes this over will continue managing the project and keep the open source community in mind. There are multiple opporutintes to generate revenue from this site if you've got a business sense as a lot of major tech companies use this service.