In my school I'm the geekiest person - and I'm over 50!
I note that the younger teachers (large primary school in NZ) do things like turn the computers on and then let kids on unsupervised, while the older teachers find a cool site and introduce the kids to it - big difference.
Me - I'm using blogs and wikis as part of my teaching tools. My 7&8 year olds are learning to work co-operatively in an online environment.