Official Joomla Resources

Joomla.org

Download Joomla

http://www.joomla.org/download.html

Get the latest releases here. 

Joomla Community -- community.joomla.org

http://community.joomla.org/

Joomla Forum -- forum.joomla.org

http://forum.joomla.org/

Official Joomla Documentation -- docs.joomla.org

http://docs.joomla.org/

Joomla Bug Squad

http://docs.joomla.org/Bug_Squad

Official Joomla Resources -- resources.joomla.org

http://resources.joomla.org/

Often referred to as the JRE

Joomla Extension Directory -- extensions.joomla.org

http://extensions.joomla.org

Joomla Idea Pool -- ideas.joomla.org

http://ideas.joomla.org/forums/84261-joomla-idea-pool

Joomla Developer Site -- developer.joomla.org

http://developer.joomla.org/ 

Joomla API

http://api.joomla.org/

Joomla Magazine -- magazine.joomla.org

http://magazine.joomla.org/

Joomla Mailing Lists

http://www.joomla.org/mailing-lists.html

Joomla Website Showcase

http://community.joomla.org/showcase/

A great place to get inspiration by seeing what others have done with their Joomla sites.

Also, if you have a great joomla site to show off this is a great place to post it.

Joomla Shop -- shop.joomla.org

http://shop.joomla.org/

no tour is complete without ending in the gift shop

ans we shall do the same.

Hope you found this post helpful.  

Did I mill any online resources? If so post them in the comments and I will get them added to the post.