Drupal 8 Updates and How to Help
https://drupal.org/community-initiatives/drupal-core
Using Drupal 8's new route controllers
http://previousnext.com.au/blog/using-drupal-8s-new-route-controllers
Drupal 8 Module Development, Part 1: Getting Started
http://getlevelten.com/blog/ian-whitcomb/drupal-8-module-development-part-1-getting-started
Drupal 8 Module Development, Part 2: Forms
http://getlevelten.com/blog/ian-whitcomb/drupal-8-module-development-part-2-forms
Learn Drupal 8 now by helping to make it more unified and user/developer friendly
http://hojtsy.hu/blog/2013-feb-07/learn-drupal-8-now-helping-make-it-more-unified-and-userdeveloper-friendly
Step-by-step: Converting modules from Drupal 7 to Drupal 8
http://webchick.net/upgrade-modules-d8
A practical example for converting a Drupal 7 module to work with Drupal 8
http://www.pixelite.co.nz/article/practical-example-converting-drupal-7-module-work-drupal-8
Theming in Drupal 8 - Conversion of themes to Twig
http://www.undpaul.de/blog/2013/07/04/theming-drupal-8-conversion-themes-twig
Twigify converts Drupal 7 phpTemplate themes into Drupal 8 Twig themes
https://github.com/ElephantVentures/public-twigify
Creating Drupal 8.x modules
https://drupal.org/node/1915030
D7 to D8 upgrade tutorial: Pants module
https://drupal.org/node/1911346
Writing module .info.yml files (Drupal 8.x)
https://drupal.org/node/2000204
Drupal 8 and Symfony in Layman's Terms
http://www.duoconsulting.com/blog/drupal-8-and-symfony-laymans-terms
Get started quickly with D8 with this nice vagrant box.
https://github.com/fabsor/vagrantd8
Drupal 8: New Multilingual Features
http://drupalize.me/blog/201307/drupal-8-new-multilingual-features
Drupal 8 now has Schema.org RDF mappings (but don't pop the champagne yet)
http://lin-clark.com/blog/drupal-8-now-has-schemaorg-rdf-mappings-dont-pop-champagne-yet
What is exciting about Drupal 8?
http://www.youtube.com/watch?v=PDBGluyY0B8
Learning by Trial and Error - Installing and Touring Drupal 8
http://drupalize.me/blog/201306/learning-trial-and-error-installing-and-touring-drupal-8
A Drupal 8 git bisect exercise
http://build2be.com/content/drupal-8-git-bisect-exercise
Thresholds, Code Freeze, Getting Features into Drupal 8, Criticals and Majors in Drupal
http://comm-press.de/en/blog/thresholds-code-freeze-getting-features-drupal-8-criticals-and-majors-drupal
Upgrading the Busy theme to Drupal 8
http://www.undpaul.de/blog/2013/06/02/upgrading-busy-theme-drupal-8
Early Drupal 7 vs Drupal 8 performance comparison
http://www.netstudio.gr/en/blog/early-drupal-7-vs-drupal-8-performance-comparison
Drupal 8: best authoring experience for structured content?
http://wimleers.com/article/drupal-8-structured-content-authoring-experience
Understanding Drupal 8's Modal API and Dialog Controller
http://previousnext.com.au/blog/understanding-drupal-8s-modal-api-and-dialog-controller
How to Prepare Your Website for Drupal 8
http://www.mediacurrent.com/blog/how-prepare-your-website-drupal-8
Great @paviles I moved the resource list to a git Repository in order to make easy fork & contribution
https://github.com/jmolivas/drupal8-links
Feel free to fork & contribute the links you added :-)