- Beginner's Guide to Origami - Basic folds, bases, and models.
- Yoshizawa-Randlett System - Information about the symbols used in origami diagrams.
- Oriland Oriversity - Some articles for beginners.
- Ultimate Origami diagrams - Categorized lists of online origami diagrams (hover mouse over "Diagrams" at top of page to see categories).
- Oriland Studio - Some easy to intermediate diagrams to get started with.
- Origami.com - An origami diagram search engine.
- Origami Database - A searchable origami database with books, diagrams, pictures, and more.
- Origami Resource Center - Various categorized diagrams and other information.
- YouTube - Has plenty of origami instruction videos. In particular these channels have a lot of good vidoes:
- Sara Adams - German captions available.
- Jo Nakashima
- OrigamiTube - A relatively small site, so YouTube probably has more videos, but still may be worth a shot.
- Origami Nut - Videos for various geometric models/modulars, and some non-geometric ones.
- Gilad's book reviews - Many, many origami book reviews with pictures of folded models.
- Origami Shop - Many, many origami books and papers.
- Happy Folding - Sara Adam's library of origami books.
- Origami Design Secrets - Robert Lang's guide to creating original origami designs.
- Genuine Origami: 43 Mathematically-Based Models, From Simple to Complex
- Origami USA
- Origami Tanteidan - Magazine of Japanese Origami Academic Society.
- Creased Magazine
Just a sample, not all of them by far.
- Robert Lang
- Eric Joisel
- David Brill
- Paul Jackson
- John Montroll
- Brian Chan
- Satoshi Kamiya - Even if you can't read Japanese, you can still check out his amazing gallery (link on the left side).
- Paper - Lang's articles on paper choice.
- Ultimate Origami articles - Links to several other lists of articles.
- Gilad's origami articles
- Happy Folding
- Ultimate Origami blog
- Go Origami
- Origami Tessellations
- Have Paper, Will Travel
- The Fitful Flog
- Origamiancy
- Gilad's origami links - Huge list of origami links, where I found many of these links.
- Lang's origami links