This site is beautiful and works pretty fast.
There are interesting diagrams: the butterfly and terrier by Collin Veber,
swallow, frog on the leaf, humming-bird.
Is told about the history of origami, and about origami from the point of view of mathematics.
I like this site and recommend it for you.
This site is pretty slow. But it is the only imperfection of this site.
On it you will find the set of very interesting diagrams sorted by categories:
dinosaurs, animal, flowers, bugs, world of fantasy, in the wood, chess set.
And it is only categories!
For example, here you will find animals:
giraffe, hyena, cat, crocodile, turtle, pig, rabbit, elephant, rhino etc.
Dino Andreozzi represents the models, such as the butterfly and the tropical fish.
Besides the Perry Bailey's models (whitefaced dragon, fire lizard,
water dragon, meditation) are submitted.
Besides there is the photogallery and links to resources devoted to origami.
Huge set of the diagrams in the pdf format.
If you don't have the Acrobat Reader, you can get it from the link.
There are simple diagrams, intermediate and difficult.
To my great affliction the site works a little slowly.
Peter Budai's site. Very good gallery, diagrams mostly of simple models, links.
Interesting papers about drawing up of the diagrams and about infinite creases.
David Petty's site.
In section of "Papers" - formulated by David itself original " the commandment
of origamist " (no scissors any glue, only one side painted square etc.), and also advice on creation of new models and on drawing up of the diagrams.
Site by John Smith about pure origami.
There are a lot of the texts beautifully organized on sections,
even with the diagrams and something like the block diagrams
(balm on souls of the reviewers) - sections " Art, Origami and Еducation ", "Profiles".
The theory, history, records, something about origamists,
one more " the commandment for the origamists ",
in section " Therapy and Education " - list of the literature.
BARF is named on reduction Bay Area Rapid Folders.
You will find here diagrams of the ant, gremlin...
There are also links to other resources devoted to the origami.
Five simple diagrams with the detailed explanatories.
Including the waterbomb.
This resource is intended for the beginners in origami and children.
The children's subjects of the site wider than origami.
Page by Tom Hall with papers on the theme of origami and mathematics,
geometrical designs etc.
Besides nice gallery of photos (crimps and so on) and diagrams.