Editores de código
https://www.sublimetext.com/
https://atom.io/
http://brackets.io/
HTML e CSS
https://www.w3schools.com/html/html_intro.asp
https://www.w3schools.com/css/css_intro.asp
https://css-tricks.com/almanac/
Javascript & jQuery
https://www.w3schools.com/
http://jquery.com/
PHP & MySQL
http://php.net/
https://www.w3schools.com/php/php_intro.asp
https://www.w3schools.com/sql/default.asp
Tecnologias
https://shifter.pt/
https://thenextweb.com/
https://techcrunch.com/
https://www.producthunt.com/