Digimation’s 3D Archive is a superb collection of over 16,000 high quality 3D models, available on multiple DVDs for $599. It comes with a browser that allows you to search for the models and sort them by poly count. Note that these are now available for Windows only.
Archive3D features a huge number of 3D models in a wide range of categories, all freely downloadable. The quality is variable but it’s an excellent source of free models.
GrabCAD is a resource mainly for CAD modelers, which offers a huge array of 3D models in a wide variety of formats. A good source of contemporary models, from iPhones to Ferraris.
Sketchup 3D Warehouse is a repository of models mainly created in Sketchup (and Photoshop can import the Sketchup format). Best for architectural models, featuring just about every major building in the world.
Pond5 is a collection of mainly high-quality 3D models, available to buy from around $5.
Free3D is a large collection of free 3D models in all categories.
HotChiPs Reader Forum is the community website for the book How To Cheat in Photoshop, by Steve Caplin. It’s a friendly and welcoming place to ask any Photoshop-related questions, to show off your work, and to hone your Photoshop skills by taking part in the weekly Friday Challenge . You don’t need to own the book in order to use the Forum!
Adobe – it’s hard to believe you don’t have Photoshop if you’ve made it this far into the website, but this is the place to go to read about the latest version of the world’s favorite image editing program.
Adobe Press are the publishers of 3D Photoshop, as well as a great many other relevant books about Photoshop and other Adobe products.