Don't over-abuse keywords
Keep your content fresh/relevant
Make sure the link text to your content reinforces the key terms you're trying to rank on (to the extent you have control of this).
Use sites like digg and stumbleupon to expose users to your content.
And so on. SEO is "dead" in the sense that basic HTML is "dead". It is no longer the mysterious domain of specially trained tech individuals. SEO is just something else that you have to know and do if you want to have any hope of your website and company being noticed in todays consumer world.
SEO is dead, but thousands of SEO consultants who are still trying to make money by making SEO out to be more than it really is are viciously fighting this fact.