Here’s something you might like to know more about. Sitelinks in Google results are those entries (normally just the first one) which have a series of smaller links underneath them. For example, you’ll probably see them for the first result if you type “Microsoft” into Google. (You might also see a separate “search Microsoft” box, but we won’t discuss that here).
So what are these “sitelinks”? They make your result look much more substantial, so it’d be nice to have them. But how do you qualify to get them? Search Engine Journal tries to answer these questions in 6 Educated Theories Behind Google SiteLinks. It might give you food for thought.