Is It a Miniature Model or the Real Thing? Introducing the "Fake Tilt-Shift" Effect

Got this from Chuck Green's ideabook...
The next time you see a photograph of a tiny little, toy-like model of a "real" scene, look again. It may not be a model at all, it may be the real thing edited using the "fake tilt-shift" effect in Photoshop ("real" tilt-shift is accomplished using a camera lens by the same name). The effect is achieved by changing the depth of field (among other things).

by yongfook

by Joshua Davis

by automatt

by cloudsoup

by house photography

by yongfook

by buteijn

Here are some links to tutorials:

tiltshiftphotography.net
recedinghairline.co.uk/tutorials/fakemodel/
Creating Fake Miniatures
Create a Faux Tilt Shift Effect in Adobe Photoshop Tutorial