A damn good introduction to org-mode

I'll have to second Carsten here on the awesome new tutorial on all things org by Bernt Hansen.  In Carsten's own words

If you are serious about using Org-mode to get organized, this is simply an awesome resource of ideas, customization snippets, tips and tricks.  I am learning looking at that, too.

And that's from the creator of org-mode!

it's just fantastic.  Give it a read or better still, take a printout and curl up with it.