Save as a google earth file. Then switch the google earth file into a zip file, within that zip, find the .dae file. Import this into blender.
Or you can export directly to .dae without saving it to .zip.
No.This is with the Free version of Google Sketchup.You cannot export directly to .DAE with the free version.
Wrong.I have the free version and it lets me export to .dae. Maybe you don't have the latest version?-snip-