Nette: make your work easier, you will write less code yet more readable and you will really enjoy it.
Meteor: Open-source platform for building top-quality web apps in a fraction of the time.
Magento: the eCommerce software and platform trusted by the world's leading brands.
OpenCart: A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.
Zen-Cart: truly is the art of e-commerce; free, user-friendly, open source shopping cart software.
Hosting and Storage
GitHub: a web-based Git repository hosting service, which offers all of the distributed revision control and source code management (SCM) functionality of Git as well as adding its own features.
BitBucket: is a web-based hosting service for projects that use either the Mercurial or Git revision control systems.
Linode: Instantly deploy and manage an SSD server in the Linode Cloud. Get a server running in seconds with your choice of Linux distro, resources, and node location.
DigitalOcean: Quick & Easy. Built For Developers. Deploy A Cloud Server In 55 Seconds - Launches in 55 seconds
Heroku: A platform as a service (PaaS) that enables developers to build and run applications entirely in the cloud.
DreamHost: provides unlimited shared web hosting and WordPress hosting.
CloudFlare: a free global CDN and DNS provider that can speed up and protect any site online.
Dropbox: a free service that lets you bring your photos, docs, and videos anywhere and share them easily.
Security and Logging
DataDogHQ: a monitoring service for IT, Operations and Development teams who write and run applications at scale, and want to turn the massive amounts of data produced by their apps, tools and services into actionable insight.
Detectify: a SaaS based website security scanner that will help you stay safe.
Tinfoil Security: provides a simple website application security solution by routinely monitoring and checking for vulnerabilities using a constantly updated scanner.
Authy: Protects people and the enterprise against malicious attack using Two-Factor Authentication security