New home of Erik te Groen's models formerly hosted at the Landsbergen site. Mostly historic spacecraft and rockets but he's branching out into sci-fi and architecture.

An ecelctic selection of aircraft models: including prop transports and some unique items like the A-300 based Beluga oversized transport (think jet-Guppy) and several flying boats.

European Space Agency site with several models of significant spacecraft and rockets.

Jet Propulsion Laboratory site with models of several deep space probes and a radio dish from the Deep Space Tracking network.

JPlanes flying paper model designs. Free sample available with inexpensive models of early jet-age fighters (as of Feb 2012).

The Lower Hudson Valley Challenger Center is a non-profit educational organization that offers a wide variety of free spacecraft and science fiction/fantasy card models. An outstanding resource for models and information on designing and building.

NASA Discovery educational site with models of several spacecraft for builders of all ages. Very easy to nicely detailed.

The Solar System Exploration website is a one-stop shop for planetary information and models published by NASA's Science Mission Directorate.

New York City Skyscraper Models Scale Models.

Blog posting at Skyscraper City site with everything New York. Buildings are posted as pictures within the posts.

Niels paper models with links to a variety of sites - many spacecraft and other sites of interest.

Sven Knudsen's link site with lots of spacecraft.

Links to free movie and TV-related paper models on the web.

Jules Perdana's web site with many original creations and links to models in various categories.

Free paper crafts, models, origami from an English language, apparently Italian-hosted site. Some cars, busses, and a NYC subway train. Looks like it's just getting started with a forum, downloads, and links as of Feb 2012.

Found by...

Photo detailed planetary models - nicely shaped and detailed - and other astronomy tools and projects. Includes the planets and major moons.

Surfduke's Moonport Project-well drawn models of Apollo, Lunar Rover, Skylab, and the Apollo/Soyuz test project hardware and spacecraft along with historical information.