• Put keywords in the header
  Simple HTML editing in the header to add keywords and a description. In CMS based sites, this can usually be achieved by editing your articles, items and global site configuration to achive this without going under the hood.
• Learn proper text formatting
  HTML to format your text. CSS to style it and keep them separate!
• Put keywords in the header, no the other header
  Use H tags in your articles properly by making sure that your article titles and content section headers are properly keyworded. Relevance is the name of the game here.
• Include lots (but not too many) relevant links
  Keep them relevant to your content, can't stress that enough!
• Crucially: Stay away from black-hat operators
  Pretty much anybody that says they can have you at the top, or #1 on Google. Lies. Deceit. Trickery. And they'll charge you a pretty penny for nothing. Sometimes one of these people finds a backdoor in Google. Trust me. It won't last long and will probably have your site black-listed by Google when they find out. And they will find out.
• Keep your head in the right place
  Some people get obsessed by creating content for Google. Google is not your customer. Create content relevant to your target market!
• If Business is your deal
  Create something people want. Simples. :)

Tell people. No, not via some dodgy spam email service. Tell. People. People you know. Friends. Relatives. Oh and make sure you're on Twitter, Facebook, MySpace, etc.