[binx]

Just start playing around, The last few weeks I have been browsing a load of sites like http://html5tutorial.net/ just mess around with bits and pieces then consult Google and Stack Overflow if you get stuck. I recommend getting stuck into some CSS3 first though, its surprising how much you can do in the style sheet.

Also its worth checking http://ie.microsoft.com/testdrive/ MS have some interesting sandboxes you can play with there. Learn your way around.