What do you mean by skimming? Do you mean where you knick the edge of something and take no falldamage? There was hardly anywhere that people intended to skim. The only one that I can really think of is http://www.youtube.com/watch?v=a_D3SKuKt6c&t=10m27s
There was only one surf map made in TFC, tehsurf. I, as well as many others, would surf mid pickup in places like alchimy_l2 bats, but surfing unfortunately never had a scene in TFC. There were maybe 2-3 servers, but they were all ported maps from 1.6.
As for playing TF2, no thanks. There's nothing there for me. I've got maybe 2 hours of free time every night after long works hours. I mainly stick to Surf maps and QuakeLive these days.