Yes, that one really does match the subject well. I can picture you zooming everywhere on rollerblades, they were roller-skates when I was younger and they were very popular, I tried them and totally failed to keep my balance and crashed. I didn't do myself any serious injury, but it put me off roller-skates.
The circles are globes, but they don't look very 'globe like' in that sig. They were created using a Photoshop action from PanosFX.com which is a really great resource site for Photoshop users.