Some great places to learn Divi and get help: (list to be updated regularly, I hope)

• Elegant Themes Blog – the creators of Divi offer some good ideas and tutorials
• Quiroz.co – tutorials and more
• DiviThemeExamples – examples of themes, tutorials and more
• DiviSoup – tutorials and more, done as recipes. Interesting
• Elegant Tweaks – I use a plugin from this site; and how to do childthemes
• Candy Themes tutorial on creating a Divi/Extra child theme and make it ready to distribute
• Ocytgon (added 4/12/2017) – tutorials, child themes, plugins

Color palettes and more:

• Coolors.co
  • a blue-green example that I really like
  • something bright similar to new .famvin theme
• Paletton