Here are the best video tutorials I have found on Sketchup so far:
- Sketchupvideo Googles official youtube channel for Sketchup tutorials
- 4sketchupgo2school More Sketchup tutorial videos
- concept3dmodeling Even more Sketchup tutorial videos
And then there's all the individuals producing tutorials
If you want to try something more "hands on", download some of the self paced tutorials from the 3D warehouse, like this one - Simply download it and open it in Sketchup.
You will find more self paced tutorials at the 3D warehouse, but please note that some of them are only for Sketchup pro.