Cogent3D, Inc recently announced the availability of two unique products for Google SketchUp which include a FREE parametric generation Rooftop plug-in with plane cut tool and a 3D photo modeler TacForge™ GeoSketch™ Version 2.2.
GeoSketch Version 2.2 would bring some exclusive advantages for sketchup users :-
Now sketchup users can create 3D models with Video/Oblique imagery/Handheld and Cell Phone Imagery/Satellite Imagery/Imagery with and without camera models.