I used to have some free space, but the more I've used my phone and downloaded stuff, they've all gotten filled up.
Home: Clock, icons for internet, mail, messaging, and camera
Left 1: Google search, small HTC music, small HTC calendar
Left 2: Power manager, mobile network toggle, market icon, audio manager
Left 3: Full HTC calendar
Right 1: Small HTC people, HTC photo frame, battery widget
Right 2: Full FreindStream (Facebook)
Right 3: Full HTC Twitter