Resources for Creating Original Characters
Character Development
Etymology, Onomastics & Language Tools
World Building
Mythology & Religion
Astrology, Tarot, Magic, Pseudoscience, & the Occult
Heraldry & Symbols
Alchemy & Classical Elements
Gemology
Flowers
Astronomy & Mars Theory
Archaeology, Culture & History
Warriors, Soldiers & Military
Weapons & Warfare
Clothing
Hairstyles
Colours
Music & Dance
Fine Art & Art History
Literature
Japanese Information, Culture & History
Miscellaneous

Character Development.

Title: Creative Writing for Teens
Notes: Contains tons of helpful articles on improving your writing, character development, and inspiration. I recommend paging through here, there’s bound to be something useful.
 
Title: Forward Motion for Writers
Notes: Lots of helpful articles about characters, worlds, and "how-to" guides. The articles under "Workshops" are most useful.
 
Title: The Dramatica Theory Index
Notes: An excellent read. This site contains a 300+ page book on the theory of dramatic story structure, "twelve essential questions" to ask about your story, and tons of articles and information on giving depth and originality to your characters and your story.
 
Title: Writing Advice
Notes: Even more helpful writing and character development articles.
 
Title: Essays on the Craft of Dramatic Writing

 
Title: The Craft of Writing

 
Title: Creating Memorable Characters

 
Title: Character Development Tips

 
Title: Creating Original Characters, Themes, and Visual Metaphors

 
Title: Biography.ms – Archetypes
Notes: An article detailing the most common archetypal concepts found in mythological figures and fictional characters.
 
Title: A Brief Outline of Jungian Psychology with some Archetypal Images, Themes, & Symbols
Notes: Skip the Psychology notes and go right to the "Archetypal Images, Themes, & Symbols. It lists and comments briefly on quite a few archetypal concepts.