resources

Programming & Tech News

Slashdot — tech news aggregator, been around since 1997
r/programming — community-curated programming links and discussion
DZone — articles and news organized by tech category
Hacker News — tech and startup news with good comment threads
Ars Technica — in-depth tech journalism
The Next Web — tech and business news
Tech Crunch — startup and venture capital news
A List Apart — long-form articles on web development and design
The Valuable Dev — practical articles on becoming a better developer

Kotlin & Java

Kotlin Blog — official JetBrains blog, release notes and articles
Baeldung — practical Java/Spring/Kotlin tutorials, very thorough
Inside Java — news and tutorials from the Java team at Oracle
InfoQ Java — articles, talks, and trends in the Java ecosystem
Kotlin Weekly — weekly newsletter for the Kotlin community

PHP

PHP The Right Way — community best practices reference
PHP Weekly — weekly newsletter of PHP links and resources
PHP Watch — tracks upcoming PHP changes and RFCs
Nomad PHP — remote PHP talks and conferences
Laravel News — latest from the Laravel ecosystem
Tomas Votruba — opinionated PHP and Symfony posts
stitcher.io — Brent Roose's blog on modern PHP

Online Education

Udemy — video courses, often deeply discounted
Laracasts — screencasts for Laravel and PHP
Packt — technical books and video courses

Coding Practice

Project Euler — math-heavy algorithmic problems
Code Wars — kata-style challenges in your language of choice
Programming Praxis — classic CS problems with solutions
HackerRank — interview prep and competitive programming

Git

Git Immersion — hands-on guided tour through Git
Learn Git Branching — interactive visual branching tutorial
GitHub Docs — official GitHub feature documentation
Think Like a Git — demystifies Git's underlying model

Miscellaneous

Refactoring Guru — code smells and design patterns explained with examples
Java Design Patterns — patterns with Java implementations
Source Making — design patterns, antipatterns, and refactoring