Couple of motivational videos:

• Evil Mode: Or, How I Learned to Stop Worrying and Love Emacs
• Emacs for writers

Then onto the general stuff:

• Get Sublime text editor-style minimap of the file in Emacs
• Article - Thinking with Emacs
• SpaceMacs Vim like bindings for emacs
• Tramp mode for remote emacs work
• Good breakdown of a .emacs file
• manage .emacs file in org mode!
• example .emacs file that has been split into multiple files

• Org mode guide

  • more from the same author
  • Even more
  • Still more
• Another org mode guide
• Org mode discussion on hacker news
• Capture html pages from browser to ORG mode
• ORG to html in 2 minutes
• ORG client for Android phones
• Create slidehows in ORG mode
• Packages contributed to ORG
• Essay on ORG mode
• ORG mode for writing
• ORG mode howto
• Interesting ORG mode guide
• Getting organized with ORG mode
• Massive example of .emacs configuration
• Another .emacs file
• ORG mode and GTD

  • More from the same author
• Journal of statistical software talks about ORG mode
• Babel in ORG mode - embed and link various programming snippets in notes
• Active documents in ORG mode
• Slide presentation of ORG mode
• General tutorial of ORG mode
• Another guide
• Personal information management in ORG mode
• Linux journal article on ORG mode
• Org mode as word processor
• Research tools (2011)
• Org mode reference card/cheat sheet