You may refer to the following resources when installing and configuring your Magento 2 stores:
Documentation
• Basic information about Magento:
https://magento.com/developers/magento2
https://magento.com/products/community-edition
• System requirements:
http://devdocs.magento.com/guides/v2.0/install-gde/system-requirements.html
• Magento documentation:
http://docs.magento.com/m2/ce/user_guide/getting-started.html
• Magento installation guide:
http://docs.magento.com/m2/ce/user_guide/magento/installation.html
• Magento developer documentation:
http://devdocs.magento.com/
Magento community
One of the most important things with Magento is that it's had a big community for many years. Which means that you can find articles and tutorials about almost anything you need. If you have a problem in Magento, you can be sure that someone has already solved it. So in most cases all you need to do is to find it on the forums. There's no need to reinvent the wheel.
These forums are here to provide you with access to a network of dedicated Magento enthusiasts sharing tips, tricks and support.
• Magento Stack Exchange (Q&A):
http://magento.stackexchange.com/questions?sort=frequent
• Stack Overflow (Q&A):
http://stackoverflow.com/questions/tagged/magento2?sort=newest
• Magento's official forums:
https://community.magento.com/