21st Century Learning Skills

So everyone talks about 21st Century Learning Skills, but do you have a clear definition of what it is or what looks like?  I sincerely believe that education must embrace the technological world that our children live in--we must incorporate email, wiki's, blogs, journal writing of all types, and social networking if we are going to truly have an educational environment that reaches the skills needed for the 21st Century.

I read blogs about what are core subjects...just one aspect of 21st Century Learning.  Everyone has their own agenda.  If I am an art teacher or a p.e. teacher then I want my subject to be a "core" subject.  If we embrace this dialog, we miss the bigger picture.  All curriculum, all content is "core".  Let's put an end to the discussion so we can begin to build the 21st Century Learning environment that our children so desperately need.