From fundamentals to using social media
tagging to score Google Sitelinks, Landers provides details about structuring content, sticking to themes and employing the SEO101 approach. You'll want to use headings where appropriate to organize
content on pages and pay close attention to providing clear and concise page titles.
The post discusses quirks, too, so take note. For example, Sitelinks always display in the same order. You have no editorial control to shift them around at all. So, he provides tips on how to get around that. If you want to have any influence at all on your Sitelinks, you'll want to get your site verified and included into your Google Webmaster Tools account. You may not be able to shift the ordering around or trigger when Sitelinks will or will not display - but you will have some tuning available.