It's automatic, right? I'm in a webmasters forum and people always talk about this.
An important thing is that you update your site often, and have lots of text content.
Link to others using
text links (buttons do not help!).
Give people a reason to come back to your site!
Don't use link farming sites.
Don't rely on PR (PageRank)!
Always check what people used to get to you (search strings).
Try to get a sitemap generator and submit it to Google once a week (at least, but don't spam them).
Using things such as "googlebombing" is not the way to go.
Good luck!