Apache is a free and open-source cross-platform web server software.
AWeber is an email marketing service.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Statamic is an open-source and self-hosted content management system based on the PHP programming language.
Unpkg is a content delivery network for everything on npm.